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Lungu P, Mushota K, Njelesani E, Sukwa T, Lakhi S, Mwaba P. Expression of mycobacterium tuberculosis induced SOCS3 and STAT3 and the implications on innate immunity in TB patients vs healthy contacts in high TB/HIV endemic setting: A cross-sectional analytical study. PLoS One 2022; 17:e0263624. [PMID: 35839170 PMCID: PMC9286224 DOI: 10.1371/journal.pone.0263624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 01/22/2022] [Indexed: 11/18/2022] Open
Abstract
Background
Mycobacterium tuberculosis (TB) remains a disease of global health concern and a leading cause of mortality arising from an infectious agent. Protective immunity to TB remains unclear. Suppressor of cytokine signaling-3 (SOCS3) and signal transduction and activator of transcription-3 (STAT3) genes have shown potential to influence innate immunity. We, therefore, explored the expression of SOCS3 and STAT3 and their implications on the innate immunity in TB patients and their healthy close contacts.
Methods
We recruited 72 TB patients and 62 healthy contacts from a high TB and HIV endemic setting (Lusaka, Zambia). We used RT-PCRT and flow cytometry to quantify the expression of SOCS, STAT3 and cytokines respectively. Data was analysed Stata version 14.0 and figures were developed in GraphPad prism version 9.1.0 (221). Assessment for associations for categorical and continuous variables was analysed using the Chi-square test and Mann-Whitney test respectively. Spearman’s rank correlation was used to evaluate the relationship between SOCS3 and IL-6. A p-value < 0.05 was considered statistically significant.
Results
Healthy contacts markedly expressed SOCS3 in both unstimulated and stimulated whole blood in comparison to TB patients (p <0.0001). STAT3 was elevated in TB patients in TB patients in stimulated blood only. IL-6 (P = < 0.0001) and IL-10 (P = <0.0001), were significantly expressed in Healthy contacts in comparison to TB patients. TNF-α (p = 0.044) were markedly elevated in TB patients in comparison to healthy contacts. IL-6 and SOCS3 correlated significantly in healthy contacts only (r = 0.429, p = 0.02).
Conclusions
Both SOCS3 and STAT3 are genes of importance in mounting protective innate immunity against TB. We propose that SOCS3 stimulation and inhibition of STAT3 as possible approaches in gene therapy and vaccine development for TB.
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Affiliation(s)
- Patrick Lungu
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
- * E-mail:
| | - Kabaso Mushota
- USAID Sustaining Technical and Analytic Resources (STAR) Project, Lusaka, Zambia
| | | | - Thomas Sukwa
- Faculty of Medicine, Lusaka Apex Medical University, Lusaka, Zambia
| | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Peter Mwaba
- Faculty of Medicine, Lusaka Apex Medical University, Lusaka, Zambia
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Mbewe N, Vinikoor MJ, Fwoloshi S, Mwitumwa M, Lakhi S, Sivile S, Yavatkar M, Lindsay B, Stafford K, Hachaambwa L, Mulenga L, Claassen CW. Advanced HIV disease management practices within inpatient medicine units at a referral hospital in Zambia: a retrospective chart review. AIDS Res Ther 2022; 19:10. [PMID: 35193598 PMCID: PMC8862513 DOI: 10.1186/s12981-022-00433-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
Background Zambia recently achieved UNAIDS 90-90-90 treatment targets for HIV epidemic control; however, inpatient facilities continue to face a large burden of patients with advanced HIV disease and HIV-related mortality. Management of advanced HIV disease, following guidelines from outpatient settings, may be more difficult within complex inpatient settings. We evaluated adherence to HIV guidelines during hospitalization, including opportunistic infection (OI) screening, treatment, and prophylaxis. Methods We reviewed inpatient medical records of people living with HIV (PLHIV) admitted to the University Teaching Hospital in Lusaka, Zambia between December 1, 2018 and April 30, 2019. We collected data on patient demographics, antiretroviral therapy (ART), HIV biomarkers, and OI screening and treatment—including tuberculosis (TB), Cryptococcus, and OI prophylaxis with co-trimoxazole (CTX). Screening and treatment cascades were constructed based on the 2017 WHO Advanced HIV Guidelines. Results We reviewed files from 200 charts of patients with advanced HIV disease; of these 92% (184/200) had been on ART previously; 58.1% (107/184) for more than 12 months. HIV viral load (VL) testing was uncommon but half of VL results were high. 39% (77/200) of patients had a documented CD4 count result. Of the 172 patients not on anti-TB treatment (ATT) on admission, TB diagnostic tests (either sputum Xpert MTB/RIF MTB/RIF or urine TB-LAM) were requested for 105 (61%) and resulted for 60 of the 105 (57%). Nine of the 14 patients (64%) with a positive lab result for TB died before results were available. Testing for Cryptococcosis was performed predominantly in patients with symptoms of meningitis. Urine TB-LAM testing was rarely performed. Conclusions At a referral hospital in Zambia, CD4 testing was inconsistent due to laboratory challenges and this reduced recognition of AHD and implementation of AHD guidelines. HIV programs can potentially reduce mortality and identify PLHIV with retention and adherence issues through strengthening inpatient activities, including reflex VL testing, TB-LAM and serum CrAg during hospitalization.
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3
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Lungu P, Njelesani E, Sukwa T, Ngalamika O, Munsaka S, Kilembe W, Lakhi S, Mwaba P. Immune correlates of Mycobacterium Tuberculosis patients in Zambia stratified by HIV serostatus and level of immunity-a cross-sectional analytical laboratory based study. PLoS One 2022; 17:e0262454. [PMID: 35025927 PMCID: PMC8758034 DOI: 10.1371/journal.pone.0262454] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 12/23/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND People living with HIV (PLHIV) co-infected with tuberculosis (TB) have a distinct clinical presentation and poorer treatment outcomes compared to HIV-seronegative TB patients. Excluding low CD4 count, innate immune factors associated with TB are not fully elucidated. We, therefore, characterised and compared the expression of IL-6, TNF-α, IFN-γ, and IL-10 in whole blood of treatment naïve TB patients stimulated with heat-killed Mycobacterium tuberculosis stratified by HIV status and the level of CD4 count. RESULTS We recruited 39 HIV seropositive and 31 HIV seronegative TB patients. Median (IQR) age was 35(28-42) years and 31(25-36) years respectively, and a majority had pulmonary tuberculosis i.e. 38(95%) and 30(97%), respectively. The two groups were significantly different in the distribution of CD4 count, 563 [465-702.5 cells/mm3] vs 345 [157-483 cell/mm3] in HIV negative vs HIV positive respectively p = <0.001. Post stimulation, the expression of IL-6 in HIV negative TB patients was significantly higher than in the HIV positive 16,757366 [8,827-23,686 pg/ml] vs. 9,508 [5,514-15,008 pg/ml], respectively; p = 0.0360. TNF-α and IFN-γ were highly expressed in HIV negative TB patients compared to the HIV positive though not statistically significant. We only observed higher expression of IL-6 in HIV negative patients in comparison to the HIV positive when stratified by level of CD4 counts as < 500 and ≥ 500 cell/mm3 for both cohorts. 21,953 [8,990-24,206 pg/ml] vs 9,505 [5,400-15,313 pg/ml], p value = 0.0585 in patients with CD4 count < 500 cell/mm3 and 13,168 [7,087-22,584 pg/ml] vs 10,413 [7,397-14,806 pg/ml], p value = 0.3744 for patients with CD4 count of ≥ 500 cell/mm3 respectively. We found a positive pairwise correlation between TNF-α -alpha and IL-6 in both HIV positive and HIV negative patients, r = 0.61 (95% CI 0.36-0.72; p < 0.0001) and r = 0.48 (95% CI 0.15-0.68; p = 0.005) respectively. The IFNγ/IL-10 ratio was higher in HIV negative when compared to HIV positive individuals, 0.052 [0.0-0.28] vs 0.007 [0-0.32] respectively; p = 0.05759. IL-6 independently reduced the probability of TB/HIV, Adjusted odds ratio 0.99, p value 0.007. CONCLUSIONS This study suggests that HIV seronegative TB patients have a higher pro-inflammatory response to MTB than HIV seropositive TB patients. Further, it also shows that the level of CD4 influences immunomodulation. The findings suggest that the difference in cytokine expression may be responsible for the distinct patterns of TB presentation between HIV positive and HIV negative patient.
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Affiliation(s)
- Patrick Lungu
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Evarist Njelesani
- Faculty of Medicine and Directorate of Postgraduate Studies, Lusaka Apex Medical University, Lusaka, Zambia
| | - Thomas Sukwa
- Faculty of Medicine and Directorate of Postgraduate Studies, Lusaka Apex Medical University, Lusaka, Zambia
| | - Owen Ngalamika
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Sody Munsaka
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | | | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Peter Mwaba
- Faculty of Medicine and Directorate of Postgraduate Studies, Lusaka Apex Medical University, Lusaka, Zambia
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Kalata N, Ellis J, Kanyama C, Kuoanfank C, Temfack E, Mfinanga S, Lesikari S, Chanda D, Lakhi S, Nyazika T, Chan AK, van Oosterhout JJ, Chen T, Hosseinipour MC, Lortholary O, Wang D, Jaffar S, Loyse A, Heyderman RS, Harrison TS, Molloy SF. Short-term Mortality Outcomes of HIV-Associated Cryptococcal Meningitis in Antiretroviral Therapy-Naïve and -Experienced Patients in Sub-Saharan Africa. Open Forum Infect Dis 2021; 8:ofab397. [PMID: 34646905 PMCID: PMC8501291 DOI: 10.1093/ofid/ofab397] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/27/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND An increasing proportion of patients with HIV-associated cryptococcal meningitis have received antiretroviral therapy (ART) before presentation. There is some evidence suggesting an increased 2-week mortality in those receiving ART for <14 days compared with those on ART for >14 days. However, presentation and outcomes for cryptococcal meningitis patients who have recently initiated ART, and those with virologic failure and/or nonadherence, are not well described. METHODS Six hundred seventy-eight adults with a first episode of cryptococcal meningitis recruited into a randomized, noninferiority, multicenter phase 3 trial in 4 Sub-Saharan countries were analyzed to compare clinical presentation and 2- and 10-week mortality outcomes between ART-naïve and -experienced patients and between patients receiving ART for varying durations before presentation. RESULTS Over half (56%; 381/678) the study participants diagnosed with a first episode of cryptococcal meningitis were ART-experienced. All-cause mortality was similar at 2 weeks (17% vs 20%; hazard ratio [HR], 0.85; 95% CI, 0.6-1.2; P = .35) and 10 weeks (38% vs 36%; HR, 1.03; 95% CI, 0.8-1.32; P = .82) for ART-experienced and ART-naïve patients. Among ART-experienced patients, using different cutoff points for ART duration, there were no significant differences in 2- and 10-week mortality based on duration of ART. CONCLUSIONS In this study, there were no significant differences in mortality at 2 and 10 weeks between ART-naïve and -experienced patients and between ART-experienced patients according to duration on ART.
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Affiliation(s)
- Newton Kalata
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Jayne Ellis
- Division of Infection and Immunity, University College London, London, UK
| | - Cecilia Kanyama
- University of North Carolina Project, Kamuzu Central Hospital, Lilongwe, Malawi
| | | | | | - Sayoki Mfinanga
- Muhimbili Centre, National Institute for Medical Research, Dar Es Salaam, Tanzania
| | - Sokoine Lesikari
- Muhimbili Centre, National Institute for Medical Research, Dar Es Salaam, Tanzania
| | | | | | - Tinashe Nyazika
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Adrienne K Chan
- Dignitas International, Zomba Central Hospital, Zomba, Malawi
- Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | | | - Tao Chen
- Liverpool School of Tropical Medicine, Liverpool, UK
| | - Mina C Hosseinipour
- University of North Carolina Project, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Olivier Lortholary
- Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Duolao Wang
- Liverpool School of Tropical Medicine, Liverpool, UK
| | | | - Angela Loyse
- Centre for Global Health, Institute of Infection and Immunity, St George University of London, London, UK
| | - Robert S Heyderman
- Division of Infection and Immunity, University College London, London, UK
| | - Thomas S Harrison
- Centre for Global Health, Institute of Infection and Immunity, St George University of London, London, UK
- MRC Centre for Medical Mycology, University of Exeter, Exeter, UK
| | - Síle F Molloy
- Centre for Global Health, Institute of Infection and Immunity, St George University of London, London, UK
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5
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Lungu PS, Kilembe W, Lakhi S, Sukwa T, Njelesani E, Zumla AI, Mwaba P. A comparison of vitamin D and cathelicidin (LL-37) levels between patients with active TB and their healthy contacts in a high HIV prevalence setting: a prospective descriptive study. Trans R Soc Trop Med Hyg 2021; 116:336-343. [PMID: 34401915 PMCID: PMC8978298 DOI: 10.1093/trstmh/trab126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/05/2021] [Accepted: 08/02/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Studies from Asia and Europe indicate an association between vitamin D deficiency and susceptibility to TB. We performed an observational case-control study to determine vitamin D and cathelicidin (LL-37) levels and their association with active TB in newly diagnosed and microbiologically confirmed adult TB patients in Zambia, a high HIV prevalence setting. METHODS Both total vitamin D and LL-37 were measured using ELISA from serum and supernatant isolated from cultured whole blood that was stimulated with heat-killed Mycobacterium tuberculosis. Statistical analysis was performed using STATA statistical software version 12. RESULTS The median vitamin D in TB patients and healthy contacts was 28.7 (19.88-38.64) and 40.8 (31.2-49.44) ng/ml, respectively (p<0.001). The median LL-37 in TB patients compared with healthy contacts was 1.87 (2.74-8.93) and 6.73 (5.6-9.58) ng/ml, respectively (p=0.0149). Vitamin D correlation with LL-37 in healthy contacts was R2=0.7 (95% CI 0.566 to 0.944), p<0.0001. Normal vitamin D significantly predicted a healthy status (OR 4.06, p=0.002). CONCLUSIONS Significantly lower levels of vitamin D and LL-37 are seen in adults with newly diagnosed active TB. Longitudinal studies across various geographical regions are required to accurately define the roles of vitamin D and LL-37 in preventive and TB treatment outcomes.
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Affiliation(s)
- Patrick Saili Lungu
- University of Zambia, School of Medicine, Department Internal Medicine, Lusaka, Zambia
| | - William Kilembe
- Rwanda Zamba HIV Research Group, Emory University, Lusaka, Zambia
| | - Shabir Lakhi
- University of Zambia, School of Medicine, Department Internal Medicine, Lusaka, Zambia
| | - Thomas Sukwa
- Lusaka Apex Medical University, Department of Public Health and Research, Lusaka, Zambia
| | | | - Alimuddin I Zumla
- Division of Infection and Immunity, University College London, and National Institutes of Health and Research Biomedical Research Centre, University College London Hospitals NHS Foundation Trust, London
| | - Peter Mwaba
- Lusaka Apex Medical University, Faculty of Medicine, Lusaka, Zambia
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Price MA, Kilembe W, Ruzagira E, Karita E, Inambao M, Sanders EJ, Anzala O, Allen S, Edward VA, Kaleebu P, Fast PE, Rida W, Kamali A, Hunter E, Tang J, Lakhi S, Mutua G, Bekker LG, Abu-Baker G, Tichacek A, Chetty P, Latka MH, Maenetje P, Makkan H, Hare J, Kibengo F, Priddy F, Landais E, Chinyenze K, Gilmour J. Cohort Profile: IAVI's HIV epidemiology and early infection cohort studies in Africa to support vaccine discovery. Int J Epidemiol 2021; 50:29-30. [PMID: 32879950 PMCID: PMC7938500 DOI: 10.1093/ije/dyaa100] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Matt A Price
- IAVI, New York, USA & Nairobi, Kenya
- Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA, USA
| | - William Kilembe
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
| | - Eugene Ruzagira
- Medical Research Council, Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit (MULS), Entebbe & Masaka, Uganda
| | - Etienne Karita
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
| | - Mubiana Inambao
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
| | - Eduard J Sanders
- Kenyan Medical Research Institute-Wellcome Trust, Kilifi, Kenya
- Nuffield Department of Clinical Medicine, Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford, Headington, UK
| | - Omu Anzala
- KAVI-Institute of Clinical Research, Nairobi, Kenya
| | - Susan Allen
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Vinodh A Edward
- The Aurum Institute, Johannesburg and Rustenburg, South Africa
- School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Advancing Care and Treatment for TB/HIV, A Collaborating Centre of the South African Medical Research Council, Cape Town, South Africa
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Pontiano Kaleebu
- Medical Research Council, Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit (MULS), Entebbe & Masaka, Uganda
| | - Patricia E Fast
- IAVI, New York, USA & Nairobi, Kenya
- Pediatric Infectious Diseases, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Wasima Rida
- Biostatistics Consultant, Arlington, VA, USA
| | | | - Eric Hunter
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Jianming Tang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Shabir Lakhi
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
| | | | - Linda Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Ggayi Abu-Baker
- Medical Research Council, Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit (MULS), Entebbe & Masaka, Uganda
| | - Amanda Tichacek
- Rwanda Zambia Emory HIV Research Group, Lusaka & Ndola, Zambia; Kigali, Rwanda
- Emory University, Atlanta, GA, USA
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | | | - Mary H Latka
- The Aurum Institute, Johannesburg and Rustenburg, South Africa
| | - Pholo Maenetje
- The Aurum Institute, Johannesburg and Rustenburg, South Africa
| | - Heeran Makkan
- The Aurum Institute, Johannesburg and Rustenburg, South Africa
| | - Jonathan Hare
- IAVI Human Immunology Laboratory, Imperial College, London, UK
| | - Freddie Kibengo
- Medical Research Council, Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit (MULS), Entebbe & Masaka, Uganda
| | | | - Elise Landais
- IAVI, New York, USA & Nairobi, Kenya
- IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA, USA
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | | | - Jill Gilmour
- IAVI Human Immunology Laboratory, Imperial College, London, UK
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7
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Molloy SF, Ross B, Kanyama C, Mfinanga S, Lesikari S, Heyderman RS, Kalata N, Ellis J, Kouanfack C, Chanda D, Temfack E, Lakhi S, Moodley A, Chan AK, van Oosterhout JJ, Mapoure Y, Mwaba P, Lalloo DG, Wang D, Lortholary O, Jaffar S, Hosseinipour MC, Loyse A, Harrison TS, Bicanic T. Fungal Burden and Raised Intracranial Pressure Are Independently Associated With Visual Loss in Human Immunodeficiency Virus-Associated Cryptococcal Meningitis. Open Forum Infect Dis 2021; 8:ofab066. [PMID: 33937434 PMCID: PMC8078267 DOI: 10.1093/ofid/ofab066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/03/2021] [Indexed: 11/14/2022] Open
Abstract
Among 472 patients with human immunodeficiency virus-associated cryptococcal meningitis, 16% had severe visual loss at presentation, and 46% of these were 4-week survivors and remained severely impaired. Baseline cerebrospinal fluid opening pressure ≥40 cmH2O (adjusted odds ratio [aOR], 2.56; 95% confidence interval [CI], 1.36-4.83; P = .02) and fungal burden >6.0 log10 colonies/mL (aOR, 3.01; 95% CI, 1.58-5.7; P = .003) were independently associated with severe visual loss.
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Affiliation(s)
- Síle F Molloy
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, United Kingdom.,Clinical Academic Group in Infection, St George's University Hospital, LondonUnited Kingdom
| | - Brad Ross
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, United Kingdom
| | | | - Sayoki Mfinanga
- National Institute for Medical Research, Muhimbili Centre, Dar es Salaam, Tanzania.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Sokoine Lesikari
- National Institute for Medical Research, Muhimbili Centre, Dar es Salaam, Tanzania
| | - Robert S Heyderman
- University College London, London, United Kingdom.,Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,College of Medicine, Queen Elizabeth Hospital, Blantyre, Malawi
| | - Newton Kalata
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,College of Medicine, Queen Elizabeth Hospital, Blantyre, Malawi
| | - Jayne Ellis
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,College of Medicine, Queen Elizabeth Hospital, Blantyre, Malawi.,The Hospital for Tropical Diseases, University College Hospital, LondonUnited Kingdom
| | | | - Duncan Chanda
- Institute for Medical Research and Training, University Teaching Hospital, Lusaka, Zambia
| | - Elvis Temfack
- Douala General Hospital, Douala, Cameroon.,National Public Health Laboratory, Yaounde, Cameroon
| | | | - Anand Moodley
- Department of Neurology, University of the Free State, Bloemfontein, South Africa
| | - Adrienne K Chan
- Dignitas International, Zomba Central Hospital, Zomba, Malawi.,Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
| | - Joep J van Oosterhout
- Partners in Hope, LilongweMalawi.,David Geffen School of Medicine, University of California, Los Angeles, USA
| | | | - Peter Mwaba
- Department of Internal Medicine and Directorate of Research and Post Graduate Studies, Lusaka Apex Medical University, Lusaka, Zambia
| | - David G Lalloo
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Duolao Wang
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Olivier Lortholary
- Institut Pasteur, Molecular Mycology Unit, Centre National de la Recherche Scientifique, Paris, France.,Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Institut Imagine, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Shabbar Jaffar
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Mina C Hosseinipour
- UNC Project, Kamuzu Central Hospital, Lilongwe, Malawi.,University of North Carolina, Chapel Hill, North Carolina, USA
| | - Angela Loyse
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, United Kingdom.,Clinical Academic Group in Infection, St George's University Hospital, LondonUnited Kingdom
| | - Thomas S Harrison
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, United Kingdom.,Clinical Academic Group in Infection, St George's University Hospital, LondonUnited Kingdom
| | - Tihana Bicanic
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, United Kingdom.,Clinical Academic Group in Infection, St George's University Hospital, LondonUnited Kingdom
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8
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Shiri T, Loyse A, Mwenge L, Chen T, Lakhi S, Chanda D, Mwaba P, Molloy SF, Heyderman RS, Kanyama C, Hosseinipour MC, Kouanfack C, Temfack E, Mfinanga S, Kivuyo S, Chan AK, Jarvis JN, Lortholary O, Jaffar S, Niessen LW, Harrison TS. Addition of Flucytosine to Fluconazole for the Treatment of Cryptococcal Meningitis in Africa: A Multicountry Cost-effectiveness Analysis. Clin Infect Dis 2021; 70:26-29. [PMID: 30816418 PMCID: PMC6912152 DOI: 10.1093/cid/ciz163] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/22/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Mortality from cryptococcal meningitis remains very high in Africa. In the Advancing Cryptococcal Meningitis Treatment for Africa (ACTA) trial, 2 weeks of fluconazole (FLU) plus flucytosine (5FC) was as effective and less costly than 2 weeks of amphotericin-based regimens. However, many African settings treat with FLU monotherapy, and the cost-effectiveness of adding 5FC to FLU is uncertain. METHODS The effectiveness and costs of FLU+5FC were taken from ACTA, which included a costing analysis at the Zambian site. The effectiveness of FLU was derived from cohorts of consecutively enrolled patients, managed in respects other than drug therapy, as were participants in ACTA. FLU costs were derived from costs of FLU+5FC in ACTA, by subtracting 5FC drug and monitoring costs. The cost-effectiveness of FLU+5FC vs FLU alone was measured as the incremental cost-effectiveness ratio (ICER). A probabilistic sensitivity analysis assessed uncertainties and a bivariate deterministic sensitivity analysis examined the impact of varying mortality and 5FC drug costs on the ICER. RESULTS The mean costs per patient were US $847 (95% confidence interval [CI] $776-927) for FLU+5FC, and US $628 (95% CI $557-709) for FLU. The 10-week mortality rate was 35.1% (95% CI 28.9-41.7%) with FLU+5FC and 53.8% (95% CI 43.1-64.1%) with FLU. At the current 5FC price of US $1.30 per 500 mg tablet, the ICER of 5FC+FLU versus FLU alone was US $65 (95% CI $28-208) per life-year saved. Reducing the 5FC cost to between US $0.80 and US $0.40 per 500 mg resulted in an ICER between US $44 and US $28 per life-year saved. CONCLUSIONS The addition of 5FC to FLU is cost-effective for cryptococcal meningitis treatment in Africa and, if made available widely, could substantially reduce mortality rates among human immunodeficiency virus-infected persons in Africa.
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Affiliation(s)
| | - Angela Loyse
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
| | | | - Tao Chen
- Liverpool School of Tropical Medicine, United Kingdom
| | - Shabir Lakhi
- University Teaching Hospital, Lusaka, Lusaka, Zambia
| | - Duncan Chanda
- University Teaching Hospital, Lusaka, Lusaka, Zambia.,Institute for Medical Research and Training, University Teaching Hospital, Lusaka, Zambia
| | - Peter Mwaba
- Department of Internal Medicine and Directorate of Research and Post-graduate Studies, Lusaka Apex Medical University, Zambia
| | - Síle F Molloy
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
| | - Robert S Heyderman
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi, Blantyre.,College of Medicine, University of Malawi, Blantyre.,University College London, United Kingdom
| | - Cecilia Kanyama
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Mina C Hosseinipour
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi.,Division of Infectious Diseases, University of North Carolina at Chapel Hill School of Medicine
| | - Charles Kouanfack
- Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida Cameroun, Cameroon.,University of Dschang, Cameroon
| | - Elvis Temfack
- Douala General Hospital, Cameroon.,Institut Pasteur, Molecular Mycology Unit, National Reference Center for Invasive Mycoses & Antifungals, Centre National de la Recherche Scientifique, Paris, France
| | - Sayoki Mfinanga
- Liverpool School of Tropical Medicine, United Kingdom.,National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, United Republic of Tanzania
| | - Sokoine Kivuyo
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, United Republic of Tanzania
| | - Adrienne K Chan
- Dignitas International, Zomba Central Hospital, Malawi.,Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Canada
| | - Joseph N Jarvis
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, United Kingdom.,Botswana Harvard AIDS Institute Partnership, Gabarone
| | - Olivier Lortholary
- Institut Pasteur, Molecular Mycology Unit, National Reference Center for Invasive Mycoses & Antifungals, Centre National de la Recherche Scientifique, Paris, France.,Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Institut Hospitalo-Universitaire Imagine, Assistance Publique - Hôpitaux de Paris, France
| | | | - Louis W Niessen
- Liverpool School of Tropical Medicine, United Kingdom.,Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland
| | - Thomas S Harrison
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
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9
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Chen T, Mwenge L, Lakhi S, Chanda D, Mwaba P, Molloy SF, Gheorghe A, Griffiths UK, Heyderman RS, Kanyama C, Kouanfack C, Mfinanga S, Chan AK, Temfack E, Kivuyo S, Hosseinipour MC, Lortholary O, Loyse A, Jaffar S, Harrison TS, Niessen LW. Healthcare Costs and Life-years Gained From Treatments Within the Advancing Cryptococcal Meningitis Treatment for Africa (ACTA) Trial on Cryptococcal Meningitis: A Comparison of Antifungal Induction Strategies in Sub-Saharan Africa. Clin Infect Dis 2020; 69:588-595. [PMID: 30863852 PMCID: PMC6669289 DOI: 10.1093/cid/ciy971] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/25/2018] [Indexed: 11/13/2022] Open
Abstract
Background Mortality from cryptoccocal meningitis remains high. The ACTA trial demonstrated that, compared with 2 weeks of amphotericin B (AmB) plus flucystosine (5FC), 1 week of AmB and 5FC was associated with lower mortality and 2 weeks of oral flucanozole (FLU) plus 5FC was non-inferior. Here, we assess the cost-effectiveness of these different treatment courses. Methods Participants were randomized in a ratio of 2:1:1:1:1 to 2 weeks of oral 5FC and FLU, 1 week of AmB and FLU, 1 week of AmB and 5FC, 2 weeks of AmB and FLU, or 2 weeks of AmB and 5FC in Malawi, Zambia, Cameroon, and Tanzania. Data on individual resource use and health outcomes were collected. Cost-effectiveness was measured as incremental costs per life-year saved, and non-parametric bootstrapping was done. Results Total costs per patient were US $1442 for 2 weeks of oral FLU and 5FC, $1763 for 1 week of AmB and FLU, $1861 for 1 week of AmB and 5FC, $2125 for 2 weeks of AmB and FLU, and $2285 for 2 weeks of AmB and 5FC. Compared to 2 weeks of AmB and 5FC, 1 week of AmB and 5FC was less costly and more effective and 2 weeks of oral FLU and 5FC was less costly and as effective. The incremental cost-effectiveness ratio for 1 week of AmB and 5FC versus oral FLU and 5FC was US $208 (95% confidence interval $91–1210) per life-year saved. Clinical Trials Registration ISRCTN45035509. Conclusions Both 1 week of AmB and 5FC and 2 weeks of Oral FLU and 5FC are cost-effective treatments.
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Affiliation(s)
- Tao Chen
- Liverpool School of Tropical Medicine, United Kingdom
| | - Lawrence Mwenge
- Zambart, Health Economics Unit, Lusaka Apex Medical University, Zambia
| | - Shabir Lakhi
- University Teaching Hospital, Lusaka Apex Medical University, Zambia
| | - Duncan Chanda
- Institute for Medical Research and Training, University Teaching Hospital, Lusaka Apex Medical University, Zambia
| | - Peter Mwaba
- Department of Internal Medicine and Directorate of Research and Post-Graduate Studies, Lusaka Apex Medical University, Zambia
| | - Síle F Molloy
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
| | - Adrian Gheorghe
- London School of Hygiene and Tropical Medicine, United Kingdom
| | | | - Robert S Heyderman
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre.,College of Medicine, University of Malawi, Blantyre.,University College London, United Kingdom
| | - Cecilia Kanyama
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe
| | - Charles Kouanfack
- Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida Cameroun, Yaoundé Hopitaux de Paris, France.,University of Dschang, Cameroon
| | - Sayoki Mfinanga
- Liverpool School of Tropical Medicine, United Kingdom.,National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, United Republic of Tanzania
| | - Adrienne K Chan
- Dignitas International, Zomba Central Hospital, Malawi.,Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Elvis Temfack
- Douala General Hospital, Cameroon.,Institut Pasteur, Molecular Mycology Unit, Paris, France
| | - Sokoine Kivuyo
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, United Republic of Tanzania
| | - Mina C Hosseinipour
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe.,University of North Carolina, Chapel Hill
| | - Olivier Lortholary
- Institut Pasteur, Molecular Mycology Unit, Paris, France.,Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Imagine Institute, Assistance Publique - Hopitaux de Paris, France
| | - Angela Loyse
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
| | | | - Thomas S Harrison
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, United Kingdom
| | - Louis W Niessen
- Liverpool School of Tropical Medicine, United Kingdom.,Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland
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10
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Barr DA, Lewis JM, Feasey N, Schutz C, Kerkhoff AD, Jacob ST, Andrews B, Kelly P, Lakhi S, Muchemwa L, Bacha HA, Hadad DJ, Bedell R, van Lettow M, Zachariah R, Crump JA, Alland D, Corbett EL, Gopinath K, Singh S, Griesel R, Maartens G, Mendelson M, Ward AM, Parry CM, Talbot EA, Munseri P, Dorman SE, Martinson N, Shah M, Cain K, Heilig CM, Varma JK, von Gottberg A, Sacks L, Wilson D, Squire SB, Lalloo DG, Davies G, Meintjes G. Mycobacterium tuberculosis bloodstream infection prevalence, diagnosis, and mortality risk in seriously ill adults with HIV: a systematic review and meta-analysis of individual patient data. Lancet Infect Dis 2020; 20:742-752. [PMID: 32178764 PMCID: PMC7254058 DOI: 10.1016/s1473-3099(19)30695-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/09/2019] [Accepted: 11/21/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The clinical and epidemiological significance of HIV-associated Mycobacterium tuberculosis bloodstream infection (BSI) is incompletely understood. We hypothesised that M tuberculosis BSI prevalence has been underestimated, that it independently predicts death, and that sputum Xpert MTB/RIF has suboptimal diagnostic yield for M tuberculosis BSI. METHODS We did a systematic review and individual patient data (IPD) meta-analysis of studies performing routine mycobacterial blood culture in a prospectively defined patient population of people with HIV aged 13 years or older. Studies were identified through searching PubMed and Scopus up to Nov 10, 2018, without language or date restrictions and through manual review of reference lists. Risk of bias in the included studies was assessed with an adapted QUADAS-2 framework. IPD were requested for all identified studies and subject to harmonised inclusion criteria: age 13 years or older, HIV positivity, available CD4 cell count, a valid mycobacterial blood culture result (excluding patients with missing data from lost or contaminated blood cultures), and meeting WHO definitions for suspected tuberculosis (presence of screening symptom). Predicted probabilities of M tuberculosis BSI from mixed-effects modelling were used to estimate prevalence. Estimates of diagnostic yield of sputum testing with Xpert (or culture if Xpert was unavailable) and of urine lipoarabinomannan (LAM) testing for M tuberculosis BSI were obtained by two-level random-effect meta-analysis. Estimates of mortality associated with M tuberculosis BSI were obtained by mixed-effect Cox proportional-hazard modelling and of effect of treatment delay on mortality by propensity-score analysis. This study is registered with PROSPERO, number 42016050022. FINDINGS We identified 23 datasets for inclusion (20 published and three unpublished at time of search) and obtained IPD from 20, representing 96·2% of eligible IPD. Risk of bias for the included studies was assessed to be generally low except for on the patient selection domain, which was moderate in most studies. 5751 patients met harmonised IPD-level inclusion criteria. Technical factors such as number of blood cultures done, timing of blood cultures relative to blood sampling, and patient factors such as inpatient setting and CD4 cell count, explained significant heterogeneity between primary studies. The predicted probability of M tuberculosis BSI in hospital inpatients with HIV-associated tuberculosis, WHO danger signs, and a CD4 count of 76 cells per μL (the median for the cohort) was 45% (95% CI 38-52). The diagnostic yield of sputum in patients with M tuberculosis BSI was 77% (95% CI 63-87), increasing to 89% (80-94) when combined with urine LAM testing. Presence of M tuberculosis BSI compared with its absence in patients with HIV-associated tuberculosis increased risk of death before 30 days (adjusted hazard ratio 2·48, 95% CI 2·05-3·08) but not after 30 days (1·25, 0·84-2·49). In a propensity-score matched cohort of participants with HIV-associated tuberculosis (n=630), mortality increased in patients with M tuberculosis BSI who had a delay in anti-tuberculosis treatment of longer than 4 days compared with those who had no delay (odds ratio 3·15, 95% CI 1·16-8·84). INTERPRETATION In critically ill adults with HIV-tuberculosis, M tuberculosis BSI is a frequent manifestation of tuberculosis and predicts mortality within 30 days. Improved diagnostic yield in patients with M tuberculosis BSI could be achieved through combined use of sputum Xpert and urine LAM. Anti-tuberculosis treatment delay might increase the risk of mortality in these patients. FUNDING This study was supported by Wellcome fellowships 109105Z/15/A and 105165/Z/14/A.
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Affiliation(s)
- David A Barr
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa; Liverpool School of Tropical Medicine, Liverpool, UK.
| | - Joseph M Lewis
- Liverpool School of Tropical Medicine, Liverpool, UK; Malawi-Liverpool-Wellcome Clinical Research Programme, Queen Elizabeth Central Hospital, College of Medicine, Blantyre, Malawi
| | - Nicholas Feasey
- Liverpool School of Tropical Medicine, Liverpool, UK; Malawi-Liverpool-Wellcome Clinical Research Programme, Queen Elizabeth Central Hospital, College of Medicine, Blantyre, Malawi
| | - Charlotte Schutz
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa; Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Andrew D Kerkhoff
- Division of HIV, Infectious Diseases, and Global Medicine at Zuckerberg San Francisco General Hospital and Trauma Center, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | - Ben Andrews
- Institute for Global Health, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Paul Kelly
- Blizard Institute, Barts and London School of Medicine, Queen Mary University of London, London, UK
| | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia School of Medicine and University Teaching Hospital, Lusaka, Zambia
| | - Levy Muchemwa
- Department of Internal Medicine, University of Zambia School of Medicine and University Teaching Hospital, Lusaka, Zambia; Defence Force School of Health Sciences, Lusaka, Zambia
| | - Helio A Bacha
- Instituto de Infectologia Emilio Ribas, São Paulo, Brazil
| | - David J Hadad
- Universidade Federal do Espirito Santo, Centro de Ciêncicas da Saúde, Departamento de Clinica Médica, Vitoria, Brazil
| | - Richard Bedell
- Dignitas International, Zomba, Malawi; Division of Global Health, University of British Columbia, Vancouver, BC, Canada
| | - Monique van Lettow
- Dignitas International, Zomba, Malawi; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Rony Zachariah
- Medecins Sans Frontieres, Operational Centre Brussels, Brussels, Belgium
| | - John A Crump
- Centre for International Health, University of Otago, Dunedin, New Zealand; Division of Infectious Diseases and International Health, Duke University Medical Center, Durham, NC, USA; Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - David Alland
- Division of Infectious Disease, Department of Medicine, Rutgers-New Jersey Medical School, Newark, NJ, USA
| | - Elizabeth L Corbett
- Malawi-Liverpool-Wellcome Clinical Research Programme, Queen Elizabeth Central Hospital, College of Medicine, Blantyre, Malawi; London School of Hygiene and Tropical Medicine, London, UK
| | | | - Sarman Singh
- Division of Clinical Microbiology and Molecular Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rulan Griesel
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Gary Maartens
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Marc Mendelson
- Division of Infectious Diseases and HIV Medicine, University of Cape Town, Cape Town, South Africa; Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Amy M Ward
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Christopher M Parry
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK; Liverpool School of Tropical Medicine, Liverpool, UK; School of Tropical Medicine and Global Health, University of Nagasaki, Nagasaki, Japan
| | - Elizabeth A Talbot
- Infectious Disease and International Health, Dartmouth Medical School, Hanover, NH, USA
| | - Patricia Munseri
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Susan E Dorman
- Johns Hopkins University Centre for TB Research, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Neil Martinson
- Johns Hopkins University Centre for TB Research, Johns Hopkins School of Medicine, Baltimore, MD, USA; Perinatal HIV Research Unit, South African Medical Research Council Soweto Matlosana Collaborating Centre for HIV/AIDS and TB, Centre of Excellence for Biomedical TB Research, University of the Witwatersrand, Johannesburg, South Africa
| | - Maunank Shah
- Johns Hopkins University Centre for TB Research, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Kevin Cain
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Charles M Heilig
- Center for Surveillance, Epidemiology, and Laboratory Services, Atlanta, GA, USA; US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jay K Varma
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Anne von Gottberg
- School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Leonard Sacks
- Office of Medical Policy, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Douglas Wilson
- Department of Internal Medicine, Edendale Hospital, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | | | | | - Gerry Davies
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Graeme Meintjes
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa; Department of Medicine, University of Cape Town, Cape Town, South Africa
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11
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Price MA, Rida W, Kilembe W, Karita E, Inambao M, Ruzagira E, Kamali A, Sanders EJ, Anzala O, Hunter E, Allen S, Edward VA, Wall KM, Tang J, Fast PE, Kaleebu P, Lakhi S, Mutua G, Bekker LG, Abu-Baker G, Tichacek A, Chetty P, Latka MH, Maenetje P, Makkan H, Kibengo F, Priddy F, Gilmour J. Control of the HIV-1 Load Varies by Viral Subtype in a Large Cohort of African Adults With Incident HIV-1 Infection. J Infect Dis 2020; 220:432-441. [PMID: 30938435 PMCID: PMC6603968 DOI: 10.1093/infdis/jiz127] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 03/22/2019] [Indexed: 12/14/2022] Open
Abstract
Few human immunodeficiency virus (HIV)–infected persons can maintain low viral levels without therapeutic intervention. We evaluate predictors of spontaneous control of the viral load (hereafter, “viral control”) in a prospective cohort of African adults shortly after HIV infection. Viral control was defined as ≥2 consecutively measured viral loads (VLs) of ≤10 000 copies/mL after the estimated date of infection, followed by at least 4 subsequent measurements for which the VL in at least 75% was ≤10 000 copies/mL in the absence of ART. Multivariable logistic regression characterized predictors of viral control. Of 590 eligible volunteers, 107 (18.1%) experienced viral control, of whom 25 (4.2%) maintained a VL of 51–2000 copies/mL, and 5 (0.8%) sustained a VL of ≤50 copies/mL. The median ART-free follow-up time was 3.3 years (range, 0.3–9.7 years). Factors independently associated with control were HIV-1 subtype A (reference, subtype C; adjusted odds ratio [aOR], 2.1 [95% confidence interval {CI}, 1.3–3.5]), female sex (reference, male sex; aOR, 1.8 [95% CI, 1.1–2.8]), and having HLA class I variant allele B*57 (reference, not having this allele; aOR, 1.9 [95% CI, 1.0–3.6]) in a multivariable model that also controlled for age at the time of infection and baseline CD4+ T-cell count. We observed strong associations between infecting HIV-1 subtype, HLA type, and sex on viral control in this cohort. HIV-1 subtype is important to consider when testing and designing new therapeutic and prevention technologies, including vaccines.
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Affiliation(s)
- Matt A Price
- International AIDS Vaccine Initiative, New York, New York.,Department of Epidemiology and Biostatistics, University of California-San Francisco
| | | | - William Kilembe
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda
| | - Etienne Karita
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda
| | - Mubiana Inambao
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda
| | | | - Anatoli Kamali
- International AIDS Vaccine Initiative, New York, New York
| | - Eduard J Sanders
- Kenyan Medical Research Institute-Wellcome Trust, Kilifi, Nairobi, Kenya.,Nuffield Department of Clinical Medicine, Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford, Headington, London, United Kingdom
| | - Omu Anzala
- KAVI Institute of Clinical Research, Nairobi, Kenya
| | - Eric Hunter
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda.,Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia
| | - Susan Allen
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda.,Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia
| | - Vinodh A Edward
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut.,The Aurum Institute, South Africa.,School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, South Africa.,Advancing Care and Treatment for TB/HIV, South African Medical Research Council, Johannesburg, South Africa
| | - Kristin M Wall
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda.,Department of Epidemiology, Emory University, Atlanta, Georgia
| | - Jianming Tang
- Department of Medicine, University of Alabama-Birmingham
| | | | | | - Shabir Lakhi
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda
| | | | | | | | - Amanda Tichacek
- Rwanda Zambia HIV Research Group, Lusaka and Ndola.,Rwanda Zambia HIV Research Group, Zambia and Kigali.,Rwanda Zambia HIV Research Group, Rwanda.,Department of Epidemiology, Emory University, Atlanta, Georgia
| | - Paramesh Chetty
- International AIDS Vaccine Initiative, New York, New York.,International AIDS Vaccine Initiative Human Immunology Laboratory, London, United Kingdom
| | | | | | | | | | - Fran Priddy
- International AIDS Vaccine Initiative, New York, New York
| | - Jill Gilmour
- International AIDS Vaccine Initiative Human Immunology Laboratory, London, United Kingdom
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12
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Mubanga E, Patel A, Siddiqi OK, Hanson BA, Dang X, Lakhi S, Mulundu G, Bender N, Koralnik IJ. Progressive multifocal leukoencephalopathy in Zambia is caused by JC virus with prototype regulatory region. J Neurovirol 2019; 25:475-479. [PMID: 31028690 DOI: 10.1007/s13365-019-00746-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/11/2019] [Accepted: 03/27/2019] [Indexed: 10/26/2022]
Abstract
There are only few documented cases of progressive multifocal leukoencephalopathy (PML) in Africa. Whether this is caused by a lack of JC virus (JCV) spread or alteration in the JCV genome is unknown. We characterized the clinical presentation, laboratory findings, and JCV regulatory region (RR) pattern of the first documented PML cases in Zambia as well as JCV seroprevalence among HIV+ and HIV- Zambians. We identified PML patients with positive JCV DNA PCR in their cerebrospinal fluid (CSF) among subjects enrolled in an ongoing tuberculous meningitis study from 2014 to 2016 in Lusaka. JCV regulatory region was further characterized by duplex PCR in patients' urine and CSF. Of 440 HIV+ patients, 14 (3%) had detectable JCV DNA in their CSF (age 18-50; CD4+ T cells counts 15-155 × 106/μl) vs 0/60 HIV- patients. The main clinical manifestations included altered mental status and impaired consciousness consistent with advanced PML. While prototype JCV was identified by duplex PCR assay in the CSF samples of all 14 PML patients, only archetype JCV was detected in their urine. All PML Zambian patients tested were seropositive for JCV compared to 46% in a control group of HIV+ and HIV- Zambian patients without PML. PML occurs among HIV-infected individuals in Zambia and is caused by CNS infection with prototype JCV, while archetype JCV strains are present in their urine. JCV seroprevalence is comparable in Zambia and the USA, and PML should be included in the differential diagnosis of immunosuppressed individuals presenting with neurological dysfunction in Zambia.
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Affiliation(s)
- Eugene Mubanga
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Atiyah Patel
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Omar K Siddiqi
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia.,Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Barbara A Hanson
- Department of Neurological Sciences, Rush University Medical Center, 1725 W. Harrison Street, Suite 1106, Chicago, IL, 60612, USA
| | - Xin Dang
- Department of Neurological Sciences, Rush University Medical Center, 1725 W. Harrison Street, Suite 1106, Chicago, IL, 60612, USA
| | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Gina Mulundu
- Department of Pathology and Microbiology, University of Zambia School of Medicine, Lusaka, Zambia
| | - Noemi Bender
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Igor J Koralnik
- Department of Neurological Sciences, Rush University Medical Center, 1725 W. Harrison Street, Suite 1106, Chicago, IL, 60612, USA.
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13
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Loyse A, Burry J, Cohn J, Ford N, Chiller T, Ribeiro I, Koulla-Shiro S, Mghamba J, Ramadhani A, Nyirenda R, Aliyu SH, Wilson D, Le T, Oladele R, Lesikari S, Muzoora C, Kalata N, Temfack E, Mapoure Y, Sini V, Chanda D, Shimwela M, Lakhi S, Ngoma J, Gondwe-Chunda L, Perfect C, Shroufi A, Andrieux-Meyer I, Chan A, Schutz C, Hosseinipour M, Van der Horst C, Klausner JD, Boulware DR, Heyderman R, Lalloo D, Day J, Jarvis JN, Rodrigues M, Jaffar S, Denning D, Migone C, Doherty M, Lortholary O, Dromer F, Stack M, Molloy SF, Bicanic T, van Oosterhout J, Mwaba P, Kanyama C, Kouanfack C, Mfinanga S, Govender N, Harrison TS. Leave no one behind: response to new evidence and guidelines for the management of cryptococcal meningitis in low-income and middle-income countries. Lancet Infect Dis 2019; 19:e143-e147. [PMID: 30344084 DOI: 10.1016/s1473-3099(18)30493-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/13/2018] [Accepted: 07/26/2018] [Indexed: 02/01/2023]
Abstract
In 2018, WHO issued guidelines for the diagnosis, prevention, and management of HIV-related cryptococcal disease. Two strategies are recommended to reduce the high mortality associated with HIV-related cryptococcal meningitis in low-income and middle-income countries (LMICs): optimised combination therapies for confirmed meningitis cases and cryptococcal antigen screening programmes for ambulatory people living with HIV who access care. WHO's preferred therapy for the treatment of HIV-related cryptococcal meningitis in LMICs is 1 week of amphotericin B plus flucytosine, and the alternative therapy is 2 weeks of fluconazole plus flucytosine. In the ACTA trial, 1-week (short course) amphotericin B plus flucytosine resulted in a 10-week mortality of 24% (95% CI -16 to 32) and 2 weeks of fluconazole and flucytosine resulted in a 10-week mortality of 35% (95% CI -29 to 41). However, with widely used fluconazole monotherapy, mortality because of HIV-related cryptococcal meningitis is approximately 70% in many African LMIC settings. Therefore, the potential to transform the management of HIV-related cryptococcal meningitis in resource-limited settings is substantial. Sustainable access to essential medicines, including flucytosine and amphotericin B, in LMICs is paramount and the focus of this Personal View.
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Affiliation(s)
- Angela Loyse
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, London, UK.
| | - Jessica Burry
- Médecins Sans Frontières Access Campaign, Geneva, Switzerland
| | - Jennifer Cohn
- Elizabeth Glazier Paediatric AIDS Foundation, Geneva, Switzerland
| | | | - Tom Chiller
- Mycotic Diseases Branch, Centers for Disease Prevention and Control, Atlanta, GA, USA
| | - Isabela Ribeiro
- Dynamic Portfolio Unit, Drugs for Neglected Diseases Initiative, Geneva, Switzerland
| | | | - Janneth Mghamba
- Ministry of Health, Community Development, Gender, Elderly and Children, Dar es Salaam, Tanzania
| | - Angela Ramadhani
- Ministry of Health, Community Development, Gender, Elderly and Children, Dar es Salaam, Tanzania
| | | | - Sani H Aliyu
- National Agency for the Control of AIDS, Lagos, Nigeria
| | - Douglas Wilson
- Department of medicine, Edendale hospital, Pietermaritzburg, South Africa
| | - Thuy Le
- Duke University School of Medicine, Durham, NC, USA
| | - Rita Oladele
- College of Medicine, University of Lagos, Lagos, Nigeria
| | - Sokoine Lesikari
- The National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania
| | - Conrad Muzoora
- Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Newton Kalata
- The College of Medicine, University of Malawi, Blantyre, Malawi
| | - Elvis Temfack
- Department of Internal Medicine, Douala General Hospital, Douala, Cameroon
| | | | - Victor Sini
- Hôpital Central Yaoundé, Site Agence Nationale de Recherche sur le Sida Cameroun, Yaoundé, Cameroon
| | - Duncan Chanda
- The Institute for Medical Research and Training, Lusaka, Zambia
| | | | | | | | | | | | - Amir Shroufi
- Médecins Sans Frontières, Cape Town, South Africa
| | | | - Adrienne Chan
- Dignitas International, Zomba Central Hospital, Zomba, Malawi; Division of Infectious Diseases, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Charlotte Schutz
- Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Mina Hosseinipour
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | | | - Jeffrey D Klausner
- UCLA David Geffen School of Medicine and Fielding School of Public Health, Los Angeles, CA, USA
| | | | | | - David Lalloo
- Liverpool School of Tropical Medicine, Liverpool, UK
| | - Jeremy Day
- Centre for Tropical Medicine and Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Joseph N Jarvis
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | | | | | - David Denning
- Global Action Fund for Fungal Infections, Geneva, Switzerland
| | | | - Megan Doherty
- HIV and Hepatitis Department, WHO, Geneva, Switzerland
| | - Olivier Lortholary
- Molecular Mycology Unit, Associated National Reference Center for Invasive Mycoses and Antifungals, Institut Pasteur, Paris, France; Department of Medicine, Paris Descartes University, Paris, France; Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Paris, France; Department of Medicine, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Françoise Dromer
- Molecular Mycology Unit, Associated National Reference Center for Invasive Mycoses and Antifungals, Institut Pasteur, Paris, France
| | - Muirgen Stack
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, London, UK
| | - Síle F Molloy
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, London, UK
| | - Tihana Bicanic
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, London, UK
| | - Joep van Oosterhout
- Dignitas International, Zomba Central Hospital, Zomba, Malawi; Department of Medicine, University of Malawi College of Medicine, Blantyre, Malawi
| | - Peter Mwaba
- Lusaka Apex Medical University, Lusaka, Zambia; Right to Care Zambia, Lusaka, Zambia
| | - Cecilia Kanyama
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Charles Kouanfack
- Dschang University, Faculty of Medicine and Pharmaceutical Science, Dschang, Cameroon
| | - Sayoki Mfinanga
- The National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania
| | - Nelesh Govender
- National Institute for Communicable Diseases, Johannesburg, South Africa
| | - Thomas S Harrison
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London, London, UK
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14
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Smith SA, Burton SL, Kilembe W, Lakhi S, Karita E, Price M, Allen S, Derdeyn CA. VH1-69 Utilizing Antibodies Are Capable of Mediating Non-neutralizing Fc-Mediated Effector Functions Against the Transmitted/Founder gp120. Front Immunol 2019; 9:3163. [PMID: 30697215 PMCID: PMC6341001 DOI: 10.3389/fimmu.2018.03163] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/21/2018] [Indexed: 01/05/2023] Open
Abstract
Multiple antibody effector functions arise in HIV-1 infection that could be harnessed to protect against infection or clear the persistent reservoir. Here, we have investigated the genetic and functional memory B cell and antibody landscape present during early infection in six individuals infected with either subtype A, C, or an A/C recombinant HIV-1. These individuals demonstrated varying levels of plasma autologous neutralization (nAb) against the transmitted/founder envelope (T/F Env) pseudovirus and non-neutralizing Fc-mediated effector function (nnFc) antibody-dependent cell-mediated cytotoxicity (ADCC) against the T/F Env gp120 protein at ~7 months after infection. Genetic analysis of the immunoglobulin heavy (VH) and light (VL) chain variable domain gene segments from 352 autologous T/F Env gp120-specific single B cells recovered at this same 7-month time-point revealed an over-representation of the VH1-69 germline in five of six individuals. A defining feature of the VH1-69 utilizing gp120-specific antibodies was their significantly more hydrophobic complementarity-determining region-2 (CDRH2) regions compared to other VH CDRH2 sequences from each individual. While none of the VH1-69 antibodies possessed strong neutralizing activity against virions pseudotyped with the autologous T/F Env, almost a third were capable of mediating high ADCC activity, as assayed by intracellular granzyme B activity in CEM.NKr.CCR5 target cells coated with autologous T/F Env gp120. High ADCC mediating VH1-69 antibodies exhibited shorter complementarity-determining region-3 (CDRH3) lengths and a more neutral isoelectric point than antibodies lacking this function. In the individual that developed the highest autologous ADCC responses, the high granzyme B producing antibodies bound to surface expressed envelope in the absence of CD4 and were not enhanced by the addition of soluble CD4. Overall, VH1-69 utilizing antibodies are commonly induced against gp120 in diverse HIV-1 infections and a subset of these antibodies can mediate ADCC functions, serving as a bridge between the innate and adaptive immune response to HIV-1.
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Affiliation(s)
- S Abigail Smith
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States.,Emory Vaccine Center, Emory University, Atlanta, GA, United States
| | - Samantha L Burton
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States.,Emory Vaccine Center, Emory University, Atlanta, GA, United States
| | | | - Shabir Lakhi
- Zambia Emory HIV Research Project, Lusaka, Zambia
| | | | - Matt Price
- International AIDS Vaccine Initiative, New York, NY, United States.,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, United States
| | - Susan Allen
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, United States
| | - Cynthia A Derdeyn
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States.,Emory Vaccine Center, Emory University, Atlanta, GA, United States.,Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, United States
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15
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Wall KM, Kilembe W, Vwalika B, Dinh C, Livingston P, Lee YM, Lakhi S, Boeras D, Naw HK, Brill I, Chomba E, Sharkey T, Parker R, Shutes E, Tichacek A, Secor WE, Allen S. Schistosomiasis is associated with incident HIV transmission and death in Zambia. PLoS Negl Trop Dis 2018; 12:e0006902. [PMID: 30543654 PMCID: PMC6292564 DOI: 10.1371/journal.pntd.0006902] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
Background We examined relationships between schistosome infection, HIV transmission or acquisition, and all-cause death. Methods We retrospectively tested baseline sera from a heterosexual HIV-discordant couple cohort in Lusaka, Zambia with follow-up from 1994–2012 in a nested case-control design. Schistosome-specific antibody levels were measured by ELISA. Associations between baseline antibody response to schistosome antigens and incident HIV transmission, acquisition, and all-cause death stratified by gender and HIV status were assessed. In a subset of HIV- women and HIV+ men, we performed immunoblots to evaluate associations between Schistosoma haematobium or Schistosoma mansoni infection history and HIV incidence. Results Of 2,145 individuals, 59% had positive baseline schistosome-specific antibody responses. In HIV+ women and men, baseline schistosome-specific antibodies were associated with HIV transmission to partners (adjusted hazard ratio [aHR] = 1.8, p<0.005 and aHR = 1.4, p<0.05, respectively) and death in HIV+ women (aHR = 2.2, p<0.001). In 250 HIV- women, presence of S. haematobium-specific antibodies was associated with increased risk of HIV acquisition (aHR = 1.4, p<0.05). Conclusion Schistosome infections were associated with increased transmission of HIV from both sexes, acquisition of HIV in women, and increased progression to death in HIV+ women. Establishing effective prevention and treatment strategies for schistosomiasis, including in urban adults, may reduce HIV incidence and death in HIV+ persons living in endemic areas. This study explored the association between schistosome infections (a disease caused by parasitic flatworms, also known as ‘snail fever’, which is very common throughout sub-Saharan Africa) and human immunodeficiency virus (HIV). We found in Lusaka, the capital of Zambia, that schistosome infections were associated with transmission of HIV from adult men and women, and schistosome infections were also associated with increased HIV acquisition in adult women. We additionally found that schistosome infections were associated with death in HIV+ adult women. Since treatment of schistosome infections with praziquantel is inexpensive, effective, and safe, schistosomiasis prevention and treatment strategies may be a cost-effective way to reduce not only the symptoms associated with the infection, but also new cases of HIV and death among HIV+ persons. Though often viewed as an infection of predominantly rural areas and children, this study highlights that schistosomiasis prevention and treatment efforts are also needed in urban areas and among adults.
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Affiliation(s)
- Kristin M Wall
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.,Department of Epidemiology, Rollins School of Public Health, Laney Graduate School, Emory University, Atlanta, Georgia, United States of America
| | - William Kilembe
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Bellington Vwalika
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.,Department of Gynecology and Obstetrics, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Cecile Dinh
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Paul Livingston
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Yeuk-Mui Lee
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Shabir Lakhi
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.,Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Debi Boeras
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Htee Khu Naw
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Ilene Brill
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.,Department of Epidemiology, Ryals School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Elwyn Chomba
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.,Ministry of Home Affairs, Zambian Ministry of Health, Lusaka, Zambia.,School of Medicine, University of Zambia, Lusaka, Zambia
| | - Tyronza Sharkey
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Rachel Parker
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Erin Shutes
- Malaria Team, Global Health Program, Bill & Melinda Gates Foundation, Seattle, Washington, United States of America
| | - Amanda Tichacek
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - W Evan Secor
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Susan Allen
- Rwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
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16
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Molloy SF, Bradley J, Karunaharan N, Mputu M, Stone N, Phulusa J, Chawinga C, Gaskell K, Segula D, Ming D, Peirse M, Chanda D, Lakhi S, Loyse A, Kanyama C, Heyderman RS, Harrison TS. Effect of oral fluconazole 1200 mg/day on QT interval in African adults with HIV-associated cryptococcal meningitis. AIDS 2018; 32:2259-2261. [PMID: 30102652 PMCID: PMC6150187 DOI: 10.1097/qad.0000000000001961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 11/25/2022]
Abstract
: We assessed the effect of fluconazole 1200 mg/day on the QT interval in cryptococcal meningitis patients. Mean corrected QT (QTc) change from baseline to day 7 was 10.1 ms (IQR: -28 to 46 ms) in the fluconazole treatment group and -12.6 ms (IQR: -39 to 13.5 ms) in those not taking fluconazole (P = 0.04). No significant increase in QTc measurements over 500 ms was observed with fluconazole. Nevertheless, it remains important to correct any electrolyte imbalance and avoid concomitant drugs that may increase QTc.
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Affiliation(s)
- Síle F. Molloy
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London
- Joint first authors
| | - John Bradley
- MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine, London, UK
- Joint first authors
| | - Natasha Karunaharan
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London
| | - Muhammad Mputu
- University Teaching Hospital, Lusaka, Zambia
- University of Zambia School of Medicine, Lusaka, Zambia
| | - Neil Stone
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London
| | - Jacob Phulusa
- University of North Carolina Project–Malawi, Kamuzu Central Hospital, Lilongwe
| | - Chimwemwe Chawinga
- University of North Carolina Project–Malawi, Kamuzu Central Hospital, Lilongwe
| | - Kate Gaskell
- Malawi–Liverpool–Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Malawi
| | - Dalitso Segula
- Malawi–Liverpool–Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Malawi
| | - Damien Ming
- Malawi–Liverpool–Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Malawi
| | - Mary Peirse
- Malawi–Liverpool–Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Malawi
| | - Duncan Chanda
- University Teaching Hospital, Lusaka, Zambia
- University of Zambia School of Medicine, Lusaka, Zambia
| | | | - Angela Loyse
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London
| | - Cecilia Kanyama
- University of North Carolina Project–Malawi, Kamuzu Central Hospital, Lilongwe
| | - Robert S. Heyderman
- Malawi–Liverpool–Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Malawi
- University College London, London, UK
| | - Thomas S. Harrison
- Centre for Global Health, Institute for Infection and Immunity, St George's University of London
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17
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Powers KA, Price MA, Karita E, Kamali A, Kilembe W, Allen S, Hunter E, Bekker LG, Lakhi S, Inambao M, Anzala O, Latka MH, Fast PE, Gilmour J, Sanders EJ. Prediction of extended high viremia among newly HIV-1-infected persons in sub-Saharan Africa. PLoS One 2018; 13:e0192785. [PMID: 29614069 PMCID: PMC5882095 DOI: 10.1371/journal.pone.0192785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/30/2018] [Indexed: 01/05/2023] Open
Abstract
Objective Prompt identification of newly HIV-infected persons, particularly those who are most at risk of extended high viremia (EHV), allows important clinical and transmission prevention benefits. We sought to determine whether EHV could be predicted during early HIV infection (EHI) from clinical, demographic, and laboratory indicators in a large HIV-1 incidence study in Africa. Design Adults acquiring HIV-1 infection were enrolled in an EHI study assessing acute retroviral syndrome (ARS) symptoms and viral dynamics. Methods Estimated date of infection (EDI) was based on a positive plasma viral load or p24 antigen test prior to seroconversion, or the mid-point between negative and positive serological tests. EHV was defined as mean untreated viral load ≥5 log10 copies/ml 130–330 days post-EDI. We used logistic regression to develop risk score algorithms for predicting EHV based on sex, age, number of ARS symptoms, and CD4 and viral load at diagnosis. Results Models based on the full set of five predictors had excellent performance both in the full population (c-statistic = 0.80) and when confined to persons with each of three HIV-1 subtypes (c-statistic = 0.80–0.83 within subtypes A, C, and D). Reduced models containing only 2–4 predictors performed similarly. In a risk score algorithm based on the final full-population model, predictor scores were one for male sex and enrollment CD4<350 cells/mm3, and two for having enrollment viral load >4.9 log10 copies/ml. With a risk score cut-point of two, this algorithm was 85% sensitive (95% CI: 76%-91%) and 61% specific (55%-68%) in predicting EHV. Conclusions Simple risk score algorithms can reliably identify persons with EHI in sub-Saharan Africa who are likely to sustain high viral loads if treatment is delayed. These algorithms may be useful for prioritizing intensified efforts around care linkage and retention, treatment initiation, adherence support, and partner services to optimize clinical and prevention outcomes.
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Affiliation(s)
- Kimberly A. Powers
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- * E-mail:
| | - Matthew A. Price
- International AIDS Vaccine Initiative, New York, New York, United States of America
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America
| | | | - Anatoli Kamali
- International AIDS Vaccine Initiative, New York, New York, United States of America
- Uganda Research Unit on AIDS, Uganda Virus Research Institute, Entebbe, Uganda
| | | | - Susan Allen
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Eric Hunter
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Shabir Lakhi
- Zambia-Emory Research Project, Lusaka & Copperbelt, Zambia
| | | | - Omu Anzala
- KAVI-ICR University of Nairobi, Nairobi, Kenya
| | | | - Patricia E. Fast
- International AIDS Vaccine Initiative, New York, New York, United States of America
| | - Jill Gilmour
- International AIDS Vaccine Initiative, New York, New York, United States of America
- Imperial College of Science, Technology and Medicine, London, United Kingdom
| | - Eduard J. Sanders
- Kenya Medical Research Institute, Kilifi, Kenya
- University of Oxford, Headington, United Kingdom
- University of Amsterdam, Amsterdam, The Netherlands
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18
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Molloy SF, Kanyama C, Heyderman RS, Loyse A, Kouanfack C, Chanda D, Mfinanga S, Temfack E, Lakhi S, Lesikari S, Chan AK, Stone N, Kalata N, Karunaharan N, Gaskell K, Peirse M, Ellis J, Chawinga C, Lontsi S, Ndong JG, Bright P, Lupiya D, Chen T, Bradley J, Adams J, van der Horst C, van Oosterhout JJ, Sini V, Mapoure YN, Mwaba P, Bicanic T, Lalloo DG, Wang D, Hosseinipour MC, Lortholary O, Jaffar S, Harrison TS. Antifungal Combinations for Treatment of Cryptococcal Meningitis in Africa. N Engl J Med 2018. [PMID: 29539274 DOI: 10.1056/nejmoa1710922] [Citation(s) in RCA: 252] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cryptococcal meningitis accounts for more than 100,000 human immunodeficiency virus (HIV)-related deaths per year. We tested two treatment strategies that could be more sustainable in Africa than the standard of 2 weeks of amphotericin B plus flucytosine and more effective than the widely used fluconazole monotherapy. METHODS We randomly assigned HIV-infected adults with cryptococcal meningitis to receive an oral regimen (fluconazole [1200 mg per day] plus flucytosine [100 mg per kilogram of body weight per day] for 2 weeks), 1 week of amphotericin B (1 mg per kilogram per day), or 2 weeks of amphotericin B (1 mg per kilogram per day). Each patient assigned to receive amphotericin B was also randomly assigned to receive fluconazole or flucytosine as a partner drug. After induction treatment, all the patients received fluconazole consolidation therapy and were followed to 10 weeks. RESULTS A total of 721 patients underwent randomization. Mortality in the oral-regimen, 1-week amphotericin B, and 2-week amphotericin B groups was 18.2% (41 of 225), 21.9% (49 of 224), and 21.4% (49 of 229), respectively, at 2 weeks and was 35.1% (79 of 225), 36.2% (81 of 224), and 39.7% (91 of 229), respectively, at 10 weeks. The upper limit of the one-sided 97.5% confidence interval for the difference in 2-week mortality was 4.2 percentage points for the oral-regimen group versus the 2-week amphotericin B groups and 8.1 percentage points for the 1-week amphotericin B groups versus the 2-week amphotericin B groups, both of which were below the predefined 10-percentage-point noninferiority margin. As a partner drug with amphotericin B, flucytosine was superior to fluconazole (71 deaths [31.1%] vs. 101 deaths [45.0%]; hazard ratio for death at 10 weeks, 0.62; 95% confidence interval [CI], 0.45 to 0.84; P=0.002). One week of amphotericin B plus flucytosine was associated with the lowest 10-week mortality (24.2%; 95% CI, 16.2 to 32.1). Side effects, such as severe anemia, were more frequent with 2 weeks than with 1 week of amphotericin B or with the oral regimen. CONCLUSIONS One week of amphotericin B plus flucytosine and 2 weeks of fluconazole plus flucytosine were effective as induction therapy for cryptococcal meningitis in resource-limited settings. (ACTA Current Controlled Trials number, ISRCTN45035509 .).
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Affiliation(s)
- Síle F Molloy
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Cecilia Kanyama
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Robert S Heyderman
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Angela Loyse
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Charles Kouanfack
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Duncan Chanda
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Sayoki Mfinanga
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Elvis Temfack
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Shabir Lakhi
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Sokoine Lesikari
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Adrienne K Chan
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Neil Stone
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Newton Kalata
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Natasha Karunaharan
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Kate Gaskell
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Mary Peirse
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Jayne Ellis
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Chimwemwe Chawinga
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Sandrine Lontsi
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Jean-Gilbert Ndong
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Philip Bright
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Duncan Lupiya
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Tao Chen
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - John Bradley
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Jack Adams
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Charles van der Horst
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Joep J van Oosterhout
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Victor Sini
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Yacouba N Mapoure
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Peter Mwaba
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Tihana Bicanic
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - David G Lalloo
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Duolao Wang
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Mina C Hosseinipour
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Olivier Lortholary
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Shabbar Jaffar
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
| | - Thomas S Harrison
- From the Centre for Global Health, Institute for Infection and Immunity, St. George's University of London (S.F.M., A.L., N.S., N. Karunaharan, J.A., T.B., T.S.H.), University College London (R.S.H.), and the MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine (J.B.), London, and Liverpool School of Tropical Medicine, Liverpool (T.C., D.G.L., D.W., S.J.) - all in the United Kingdom; the University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe (C. Kanyama, C.C., C.H., M.C.H.), Malawi-Liverpool-Wellcome Trust Clinical Research Programme (R.S.H., N. Kalata, K.G., M.P., J.E.) and the College of Medicine, University of Malawi (R.S.H., N. Kalata, K.G., M.P., J.E., J.J.O.), Blantyre, and Dignitas International, Zomba Central Hospital, Zomba (A.K.C., P.B., D.L., J.J.O.) - all in Malawi; University of Dschang, Dschang (C. Kouanfack), Hôpital Central Yaoundé/Site Agence Nationale de Recherche sur le Sida (ANRS) Cameroun, Yaoundé (C. Kouanfack, S. Lontsi, J.-G.N., V.S.), and Douala General Hospital (E.T., Y.N.M.) and University of Douala (Y.N.M.), Douala - all in Cameroon; the Institute for Medical Research and Training (D.C., N.S., N. Karunaharan, P.B.), University Teaching Hospital (D.C., S. Lakhi, N.S., N. Karunaharan, P.B.), and the Department of Internal Medicine and Directorate of Research and Postgraduate Studies, Lusaka Apex Medical University (P.M.), Lusaka, Zambia; the National Institute for Medical Research, Muhimbili Medical Research Centre, Dar Es Salaam, Tanzania (S.M., S. Lesikari); Institut Pasteur, Molecular Mycology Unit (E.T., O.L.), and Paris Descartes University, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, IHU Imagine, Assistance Publique-Hôpitaux de Paris (O.L.), Paris; the Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto (A.K.C.); and the University of North Carolina, Chapel Hill (C.H., M.C.H.)
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19
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Andrews B, Semler MW, Muchemwa L, Kelly P, Lakhi S, Heimburger DC, Mabula C, Bwalya M, Bernard GR. Effect of an Early Resuscitation Protocol on In-hospital Mortality Among Adults With Sepsis and Hypotension: A Randomized Clinical Trial. JAMA 2017; 318:1233-1240. [PMID: 28973227 PMCID: PMC5710318 DOI: 10.1001/jama.2017.10913] [Citation(s) in RCA: 258] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
IMPORTANCE The effect of an early resuscitation protocol on sepsis outcomes in developing countries remains unknown. OBJECTIVE To determine whether an early resuscitation protocol with administration of intravenous fluids, vasopressors, and blood transfusion decreases mortality among Zambian adults with sepsis and hypotension compared with usual care. DESIGN, SETTING, AND PARTICIPANTS Randomized clinical trial of 212 adults with sepsis (suspected infection plus ≥2 systemic inflammatory response syndrome criteria) and hypotension (systolic blood pressure ≤90 mm Hg or mean arterial pressure ≤65 mm Hg) presenting to the emergency department at a 1500-bed referral hospital in Zambia between October 22, 2012, and November 11, 2013. Data collection concluded December 9, 2013. INTERVENTIONS Patients were randomized 1:1 to either (1) an early resuscitation protocol for sepsis (n = 107) that included intravenous fluid bolus administration with monitoring of jugular venous pressure, respiratory rate, and arterial oxygen saturation and treatment with vasopressors targeting mean arterial pressure (≥65 mm Hg) and blood transfusion (for patients with a hemoglobin level <7 g/dL) or (2) usual care (n = 105) in which treating clinicians determined hemodynamic management. MAIN OUTCOMES AND MEASURES The primary outcome was in-hospital mortality and the secondary outcomes included the volume of intravenous fluid received and receipt of vasopressors. RESULTS Among 212 patients randomized to receive either the sepsis protocol or usual care, 3 were ineligible and the remaining 209 completed the study and were included in the analysis (mean [SD] age, 36.7 [12.4] years; 117 men [56.0%]; 187 [89.5%] positive for the human immunodeficiency virus). The primary outcome of in-hospital mortality occurred in 51 of 106 patients (48.1%) in the sepsis protocol group compared with 34 of 103 patients (33.0%) in the usual care group (between-group difference, 15.1% [95% CI, 2.0%-28.3%]; relative risk, 1.46 [95% CI, 1.04-2.05]; P = .03). In the 6 hours after presentation to the emergency department, patients in the sepsis protocol group received a median of 3.5 L (interquartile range, 2.7-4.0 L) of intravenous fluid compared with 2.0 L (interquartile range, 1.0-2.5 L) in the usual care group (mean difference, 1.2 L [95% CI, 1.0-1.5 L]; P < .001). Fifteen patients (14.2%) in the sepsis protocol group and 2 patients (1.9%) in the usual care group received vasopressors (between-group difference, 12.3% [95% CI, 5.1%-19.4%]; P < .001). CONCLUSIONS AND RELEVANCE Among adults with sepsis and hypotension, most of whom were positive for HIV, in a resource-limited setting, a protocol for early resuscitation with administration of intravenous fluids and vasopressors increased in-hospital mortality compared with usual care. Further studies are needed to understand the effects of administration of intravenous fluid boluses and vasopressors in patients with sepsis across different low- and middle-income clinical settings and patient populations. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01663701.
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Affiliation(s)
- Ben Andrews
- Institute for Global Health, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka
| | - Matthew W. Semler
- Division of Allergy, Pulmonary, and Critical Care Medicine, School of Medicine, Vanderbilt University, Nashville, Tennessee
| | - Levy Muchemwa
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka
| | - Paul Kelly
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka
- Barts and the London School of Medicine, Queen Mary University of London, London, England
| | - Shabir Lakhi
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka
| | - Douglas C. Heimburger
- Institute for Global Health, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | | | - Gordon R. Bernard
- Division of Allergy, Pulmonary, and Critical Care Medicine, School of Medicine, Vanderbilt University, Nashville, Tennessee
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20
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Wall KM, Kilembe W, Vwalika B, Haddad LB, Hunter E, Lakhi S, Chavuma R, Htee Khu N, Brill I, Vwalika C, Mwananyanda L, Chomba E, Mulenga J, Tichacek A, Allen S. Risk of heterosexual HIV transmission attributable to sexually transmitted infections and non-specific genital inflammation in Zambian discordant couples, 1994-2012. Int J Epidemiol 2017; 46:1593-1606. [PMID: 28402442 PMCID: PMC5837621 DOI: 10.1093/ije/dyx045] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 02/24/2017] [Accepted: 03/01/2017] [Indexed: 12/13/2022] Open
Abstract
Background Studies have demonstrated the role of ulcerative and non-ulcerative sexually transmitted infections (STI) in HIV transmission/acquisition risk; less is understood about the role of non-specific inflammatory genital abnormalities. Methods HIV-discordant heterosexual Zambian couples were enrolled into longitudinal follow-up (1994-2012). Multivariable models estimated the effect of genital ulcers and inflammation in both partners on time-to-HIV transmission within the couple. Population-attributable fractions (PAFs) were calculated. Results A total of 207 linked infections in women occurred over 2756 couple-years (7.5/100 CY) and 171 in men over 3216 CY (5.3/100 CY). Incident HIV among women was associated with a woman's non-STI genital inflammation (adjusted hazard ratio (aHR) = 1.55; PAF = 8%), bilateral inguinal adenopathy (BIA; aHR = 2.33; PAF = 8%), genital ulceration (aHR = 2.08; PAF = 7%) and the man's STI genital inflammation (aHR = 3.33; PAF = 5%), BIA (aHR = 3.35; PAF = 33%) and genital ulceration (aHR = 1.49; PAF = 9%). Infection among men was associated with a man's BIA (aHR = 4.11; PAF = 22%) and genital ulceration (aHR = 3.44; PAF = 15%) as well as with the woman's non-STI genital inflammation (aHR = 1.92; PAF = 13%) and BIA (aHR = 2.76; PAF = 14%). In HIV-M+F- couples, the man being uncircumcised. with foreskin smegma. was associated with the woman's seroconversion (aHR = 3.16) relative to being circumcised. In F+M- couples, uncircumcised men with BIA had an increased hazard of seroconversion (aHR = 13.03 with smegma and 4.95 without) relative to being circumcised. Self-reporting of symptoms was low for ulcerative and non-ulcerative STIs. Conclusions Our findings confirm the role of STIs and highlight the contribution of non-specific genital inflammation to both male-to-female and female-to-male HIV transmission/acquisition risk. Studies are needed to characterize pathogenesis of non-specific inflammation including inguinal adenopathy. A better understanding of genital practices could inform interventions.
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Affiliation(s)
- Kristin M Wall
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - William Kilembe
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Bellington Vwalika
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Departments of Gynecology and Obstetrics (B.V.), Internal Medicine (S.L.) and Surgery (R.C.), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Lisa B Haddad
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Department of Gynecology and Obstetrics, Emory University, School of Medicine, Atlanta, GA, USA
| | - Eric Hunter
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Shabir Lakhi
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Departments of Gynecology and Obstetrics (B.V.), Internal Medicine (S.L.) and Surgery (R.C.), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Roy Chavuma
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Departments of Gynecology and Obstetrics (B.V.), Internal Medicine (S.L.) and Surgery (R.C.), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Naw Htee Khu
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Ilene Brill
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Department of Epidemiology, Ryals School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA and
| | - Cheswa Vwalika
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Lawrence Mwananyanda
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Elwyn Chomba
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
- Ministry of Community Development, Mother and Child Health, Lusaka, Zambia
| | - Joseph Mulenga
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Amanda Tichacek
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Susan Allen
- Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA
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21
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Moore CC, Hazard R, Saulters KJ, Ainsworth J, Adakun SA, Amir A, Andrews B, Auma M, Baker T, Banura P, Crump JA, Grobusch MP, Huson MAM, Jacob ST, Jarrett OD, Kellett J, Lakhi S, Majwala A, Opio M, Rubach MP, Rylance J, Michael Scheld W, Schieffelin J, Ssekitoleko R, Wheeler I, Barnes LE. Derivation and validation of a universal vital assessment (UVA) score: a tool for predicting mortality in adult hospitalised patients in sub-Saharan Africa. BMJ Glob Health 2017; 2:e000344. [PMID: 29082001 PMCID: PMC5656117 DOI: 10.1136/bmjgh-2017-000344] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/12/2017] [Accepted: 07/05/2017] [Indexed: 12/23/2022] Open
Abstract
Background Critical illness is a leading cause of morbidity and mortality in sub-Saharan Africa (SSA). Identifying patients with the highest risk of death could help with resource allocation and clinical decision making. Accordingly, we derived and validated a universal vital assessment (UVA) score for use in SSA. Methods We pooled data from hospital-based cohort studies conducted in six countries in SSA spanning the years 2009–2015. We derived and internally validated a UVA score using decision trees and linear regression and compared its performance with the modified early warning score (MEWS) and the quick sepsis-related organ failure assessment (qSOFA) score. Results Of 5573 patients included in the analysis, 2829 (50.8%) were female, the median (IQR) age was 36 (27–49) years, 2122 (38.1%) were HIV-infected and 996 (17.3%) died in-hospital. The UVA score included points for temperature, heart and respiratory rates, systolic blood pressure, oxygen saturation, Glasgow Coma Scale score and HIV serostatus, and had an area under the receiver operating characteristic curve (AUC) of 0.77 (95% CI 0.75 to 0.79), which outperformed MEWS (AUC 0.70 (95% CI 0.67 to 0.71)) and qSOFA (AUC 0.69 (95% CI 0.67 to 0.72)). Conclusion We identified predictors of in-hospital mortality irrespective of the underlying condition(s) in a large population of hospitalised patients in SSA and derived and internally validated a UVA score to assist clinicians in risk-stratifying patients for in-hospital mortality. The UVA score could help improve patient triage in resource-limited environments and serve as a standard for mortality risk in future studies.
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Affiliation(s)
- Christopher C Moore
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Riley Hazard
- College of Arts and Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Kacie J Saulters
- Department of Medicine, Georgetown University, Washington, District of Columbia, USA
| | - John Ainsworth
- Healthsystem Information Technology, University of Virginia Health Systems, Charlottesville, Virginia, USA
| | - Susan A Adakun
- Department of Medicine, Mulago National Referral and Teaching Hospital, Kampala, Uganda
| | - Abdallah Amir
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Ben Andrews
- Institute for Global Health, Vanderbilt University, Nashville, Tennessee, USA
| | - Mary Auma
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Tim Baker
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Patrick Banura
- Department of Pediatrics, Masaka Regional Referral Hospital, Masaka, Uganda
| | - John A Crump
- Centre for International Health, University of Otago, Dunedin, New Zealand
| | - Martin P Grobusch
- Center of Tropical Medicine and Travel Medicine, University of Amsterdam, Amsterdam, The Netherlands
| | - Michaëla A M Huson
- Center of Tropical Medicine and Travel Medicine, University of Amsterdam, Amsterdam, The Netherlands
| | - Shevin T Jacob
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Olamide D Jarrett
- Department of Medicine, University of Illinois at Chicago School of Medicine, Chicago, Illinois, USA
| | - John Kellett
- Department of Acute and Emergency Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Albert Majwala
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Martin Opio
- Department of Medicine, Kitovu Hospital, Masaka, Uganda
| | - Matthew P Rubach
- Division of Infectious Diseases and International Health, Duke University Medical Center, Durham, North Carolina, USA
| | - Jamie Rylance
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - W Michael Scheld
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - John Schieffelin
- Departments of Pediatrics and Internal Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Richard Ssekitoleko
- Department of Medicine, Mulago National Referral and Teaching Hospital, Kampala, Uganda
| | - India Wheeler
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Laura E Barnes
- Department of Systems and Information Engineering, University of Virginia, Charlottesville, USA
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22
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Abujaber R, Shea PR, McLaren PJ, Lakhi S, Gilmour J, Allen S, Fellay J, Hollox EJ. No Evidence for Association of β-Defensin Genomic Copy Number with HIV Susceptibility, HIV Load during Clinical Latency, or Progression to AIDS. Ann Hum Genet 2017; 81:27-34. [PMID: 28084001 DOI: 10.1111/ahg.12182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/30/2016] [Indexed: 11/28/2022]
Abstract
Common single-nucleotide variation in the host accounts for 25% of the variability in the plasma levels of HIV during the clinical latency stage (viral load set point). However, the role of rare variants and copy number variants remains relatively unexplored. Previous work has suggested copy number variation of a cluster of β-defensin genes affects HIV load in treatment-naïve sub-Saharan Africans and rate of response to antiretroviral treatment. Here we analyse a total of 1827 individuals from two cohorts of HIV-infected individuals from Europe and sub-Saharan Africa to investigate the role of β-defensin copy number variation on HIV load at set point. We find no evidence for association of copy number with viral load. We also compare distribution of β-defensin copy number between European cases and controls and find no differences, arguing against a role of β-defensin copy number in HIV acquisition. Taken together, our data argue against an effect of copy number variation of the β-defensin region in the spontaneous control of HIV infection.
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Affiliation(s)
- Razan Abujaber
- Department of Genetics, University of Leicester, Leicester, UK
| | - Patrick R Shea
- Institute for Genomic Medicine, Columbia University, New York, New York, USA
| | - Paul J McLaren
- National HIV and Retrovirology Laboratory, Public Health Agency of Canada, Winnipeg, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
| | - Shabir Lakhi
- International AIDS Vaccine Initiative (IAVI), New York, New York, USA.,Zambia-Emory HIV Research Project, Lusaka and Copperbelt, Zambia
| | - Jill Gilmour
- International AIDS Vaccine Initiative (IAVI), New York, New York, USA.,IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom
| | - Susan Allen
- International AIDS Vaccine Initiative (IAVI), New York, New York, USA.,School of Life Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | | | - Edward J Hollox
- Department of Genetics, University of Leicester, Leicester, UK
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- Department of Genetics, University of Leicester, Leicester, UK
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23
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Zimba S, Ntanda PM, Lakhi S, Atadzhanov M. HIV infection, hypercoagulability and ischaemic stroke in adults at the University Teaching Hospital in Zambia: a case control study. BMC Infect Dis 2017; 17:354. [PMID: 28521833 PMCID: PMC5437681 DOI: 10.1186/s12879-017-2455-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 05/09/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND In Zambia, 14.2% of adults have HIV/AIDS. There has been a substantial and significant increase in patients hospitalized for ischaemic stroke with co-existing HIV infection. However, little is known about the mechanism of stroke in these HIV + ve patients let alone studied in our region. The aim of this pilot study was to explore the association of hypercoagulability state in HIV + ve patients with ischaemic stroke. This was achieved by comparing hypercoagulability state markers between HIV + ve ischaemic stroke patients with HIV-ve and HIV + ve patients with and without ischaemic stroke respectively. METHODS A matched case control study in which a total of 52 HIV + ve patients with ischaemic stroke were prospectively compared with control groups for the presence of protein S, protein C deficiencies and hyperhomocysteinaemia. The control groups comprised an equal number of consecutively matched for age and sex HIV-ve and HIV + ve patients with and without ischaemic stroke respectively. Data was analysed in contingency tables using Paired t- test, Chi square and conditional logistic regression. RESULTS Ischaemic stroke of undetermined aetiology occurred more frequently in HIV + ve compared to HIV-ve patients (p < 0.001). In addition, protein S deficiency and Hyperhomocysteinaemia were more prominent in HIV + ve than HIV-ve ischaemic stroke patients (P = 0.011). There was no difference in the presence of hyperhomocysteinaemia or protein S deficiency in HIV + ve patients with or without ischaemic stroke. Protein C deficiency was not noted to be significantly different between the cases and the two control arms. CONCLUSION Protein S deficiency and hyperhomocysteinaemia were associated with HIV infection, but not stroke in our study population. However, this is an area that requires extensive research and one that we cannot afford to ignore as it is an important bridge to all cardiovascular and cerebrovascular diseases.
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Affiliation(s)
- Stanley Zimba
- Department of Internal Medicine, University of Zambia, P.O.Box 51237, Lusaka, Zambia
| | | | - Shabir Lakhi
- Department of Internal Medicine, University of Zambia, P.O.Box 51237, Lusaka, Zambia
| | - Masharip Atadzhanov
- Department of Internal Medicine, University of Zambia, P.O.Box 51237, Lusaka, Zambia
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24
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Vanhove M, Beale MA, Rhodes J, Chanda D, Lakhi S, Kwenda G, Molloy S, Karunaharan N, Stone N, Harrison TS, Bicanic T, Fisher MC. Genomic epidemiology of Cryptococcus yeasts identifies adaptation to environmental niches underpinning infection across an African HIV/AIDS cohort. Mol Ecol 2017; 26:1991-2005. [PMID: 27862555 PMCID: PMC5412878 DOI: 10.1111/mec.13891] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 10/15/2016] [Accepted: 10/17/2016] [Indexed: 12/21/2022]
Abstract
Emerging infections caused by fungi have become a widely recognized global phenomenon and are causing an increasing burden of disease. Genomic techniques are providing new insights into the structure of fungal populations, revealing hitherto undescribed fine-scale adaptations to environments and hosts that govern their emergence as infections. Cryptococcal meningitis is a neglected tropical disease that is responsible for a large proportion of AIDS-related deaths across Africa; however, the ecological determinants that underlie a patient's risk of infection remain largely unexplored. Here, we use genome sequencing and ecological genomics to decipher the evolutionary ecology of the aetiological agents of cryptococcal meningitis, Cryptococcus neoformans and Cryptococcus gattii, across the central African country of Zambia. We show that the occurrence of these two pathogens is differentially associated with biotic (macroecological) and abiotic (physical) factors across two key African ecoregions, Central Miombo woodlands and Zambezi Mopane woodlands. We show that speciation of Cryptococcus has resulted in adaptation to occupy different ecological niches, with C. neoformans found to occupy Zambezi Mopane woodlands and C. gattii primarily recovered from Central Miombo woodlands. Genome sequencing shows that C. neoformans causes 95% of human infections in this region, of which over three-quarters belonged to the globalized lineage VNI. We show that VNI infections are largely associated with urbanized populations in Zambia. Conversely, the majority of C. neoformans isolates recovered in the environment belong to the genetically diverse African-endemic lineage VNB, and we show hitherto unmapped levels of genomic diversity within this lineage. Our results reveal the complex evolutionary ecology that underpins the reservoirs of infection for this, and likely other, deadly pathogenic fungi.
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MESH Headings
- Adaptation, Physiological/genetics
- Cryptococcus gattii/genetics
- Cryptococcus neoformans/genetics
- DNA Barcoding, Taxonomic
- DNA, Fungal/genetics
- DNA, Ribosomal Spacer/genetics
- Forests
- Genetics, Population
- Genome, Fungal
- Genomics
- Humans
- Meningitis, Cryptococcal/epidemiology
- Meningitis, Cryptococcal/microbiology
- Models, Biological
- Phylogeny
- Plant Bark/microbiology
- Polymorphism, Single Nucleotide
- Soil Microbiology
- Trees/microbiology
- Zambia
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Affiliation(s)
- Mathieu Vanhove
- Department of Infectious Disease Epidemiology, St Mary's Hospital, Imperial College London, London, W2 1PG, UK
| | - Mathew A Beale
- Department of Infectious Disease Epidemiology, St Mary's Hospital, Imperial College London, London, W2 1PG, UK
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
- Division of Infection & Immunity, University College London, Gower St, London WC1E 6BT, UK
| | - Johanna Rhodes
- Department of Infectious Disease Epidemiology, St Mary's Hospital, Imperial College London, London, W2 1PG, UK
| | - Duncan Chanda
- School of Medicine, University of Zambia, Nationalist Road, PO Box 50110, Lusaka, Zambia
| | - Shabir Lakhi
- School of Medicine, University of Zambia, Nationalist Road, PO Box 50110, Lusaka, Zambia
| | - Geoffrey Kwenda
- Department of Biomedical Sciences, University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Sile Molloy
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
| | - Natasha Karunaharan
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
| | - Neil Stone
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
| | - Thomas S Harrison
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
| | - Tihana Bicanic
- Institute of Infection and Immunity, St. George's University of London, Blackshaw Road, London SW17 0QT, UK
| | - Matthew C Fisher
- Department of Infectious Disease Epidemiology, St Mary's Hospital, Imperial College London, London, W2 1PG, UK
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25
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Siddiqi OK, Brown M, Cooper C, Atadzhanov M, Lakhi S, Koralnik IJ. Developing a successful global neurology program. Ann Neurol 2017; 81:167-170. [DOI: 10.1002/ana.24863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Omar K. Siddiqi
- Global Neurology Program, Division of Neuro-Immunology, Center for Virology and Vaccine Research, Department of Neurology; Beth Deaconess Medical Center, Harvard Medical School; Boston MA
- Department of Internal Medicine; University of Zambia School of Medicine; Lusaka Zambia
| | - Merritt Brown
- Division of Neurocritical Care, Department of Neurology; University of Pennsylvania Health System; Philadelphia PA
| | - Christine Cooper
- Movement Disorders Division, Department of Neurology; Medical University of South Carolina; Columbia SC
| | - Masharip Atadzhanov
- Department of Internal Medicine; University of Zambia School of Medicine; Lusaka Zambia
| | - Shabir Lakhi
- Department of Internal Medicine; University of Zambia School of Medicine; Lusaka Zambia
| | - Igor J. Koralnik
- Global Neurology Program, Division of Neuro-Immunology, Center for Virology and Vaccine Research, Department of Neurology; Beth Deaconess Medical Center, Harvard Medical School; Boston MA
- Department of Neurological Sciences; Rush University Medical Center; Chicago IL
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26
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Wall KM, Kilembe W, Vwalika B, Haddad LB, Lakhi S, Onwubiko U, Htee Khu N, Brill I, Chavuma R, Vwalika C, Mwananyanda L, Chomba E, Mulenga J, Tichacek A, Allen S. Sustained effect of couples' HIV counselling and testing on risk reduction among Zambian HIV serodiscordant couples. Sex Transm Infect 2017; 93:259-266. [PMID: 28082662 PMCID: PMC5520263 DOI: 10.1136/sextrans-2016-052743] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/23/2016] [Accepted: 12/21/2016] [Indexed: 01/26/2023] Open
Abstract
Background We present temporal trends in self-reported and biological markers of unprotected sex and sex with concurrent partners in discordant couples receiving couples' voluntary HIV counselling and testing (CVCT). Methods Heterosexual Zambian HIV-serodiscordant couples were enrolled into longitudinal follow-up in an open cohort (1994–2012). Multivariable Anderson-Gill models explored predictors of self-report and biological indicators of unprotected sex within (including sperm on a vaginal swab, incident pregnancy or incident linked HIV infection) and outside (including self-report, STI and unlinked HIV infection) the union. Measures of secular trends in baseline measures were also examined. Results At enrolment of 3049 couples, men were 35 years old on average, women were 29 years, and couples had been together for an average of 7 years. M+F− couples reported an average of 16.6 unprotected sex acts in the 3 months prior to enrolment (pre-CVCT), dropping to 5.3 in the >0–3 month interval, and 2.0 in >6 month intervals (p-trend <0.001). Corresponding values for M−F+ couples were 22.4 unprotected sex acts in the 3 months prior enrolment, dropping to 5.2 in the >0–3 month interval, and 3.1 in >6 month intervals (p-trend <0.001). Significant reductions in self-report and biological markers of outside partners were also noted. Predictors of unprotected sex between study partners after CVCT included prevalent pregnancy (adjusted HR, aHR=1.6–1.9); HIV+ men being circumcised (aHR=1.2); and HIV− women reporting sex with outside partners (aHR=1.3), alcohol (aHR=1.2), injectable (aHR=1.4) or oral (aHR=1.4) contraception use. Fertility intentions were also predictive of unprotected sex (aHR=1.2–1.4). Secular trends indicated steady declines in reported outside partners and STIs. Conclusion Reductions in self-reported unprotected sex after CVCT were substantial and sustained. Reinforced risk-reduction counselling in pregnant couples, couples desiring children and couples with HIV− women having outside partners or using alcohol or injectable or oral contraception are indicated.
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Affiliation(s)
- Kristin M Wall
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Epidemiology, Rollins School of Public Health, Laney Graduate School, Emory University, Atlanta, Georgia, USA
| | - William Kilembe
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Bellington Vwalika
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Gynaecology and Obstetrics (BV), Internal Medicine (SL) and Surgery (RC), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Lisa B Haddad
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Gynaecology and Obstetrics, Emory University, School of Medicine, Atlanta, Georgia, USA
| | - Shabir Lakhi
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Gynaecology and Obstetrics (BV), Internal Medicine (SL) and Surgery (RC), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Udodirim Onwubiko
- Department of Epidemiology, Rollins School of Public Health, Laney Graduate School, Emory University, Atlanta, Georgia, USA
| | - Naw Htee Khu
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Ilene Brill
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Epidemiology, Ryals School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Roy Chavuma
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Department of Gynaecology and Obstetrics (BV), Internal Medicine (SL) and Surgery (RC), School of Medicine, University of Zambia, Lusaka, Zambia
| | - Cheswa Vwalika
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Lawrence Mwananyanda
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Elwyn Chomba
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Ministry of Community Development, Mother and Child Health, Lusaka, Zambia
| | - Joseph Mulenga
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Amanda Tichacek
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Susan Allen
- Rwanda Zambia HIV Research Group, Department of Pathology and Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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27
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Tang J, Li X, Price MA, Sanders EJ, Anzala O, Karita E, Kamali A, Lakhi S, Allen S, Hunter E, Kaslow RA, Gilmour J. CD4:CD8 lymphocyte ratio as a quantitative measure of immunologic health in HIV-1 infection: findings from an African cohort with prospective data. Front Microbiol 2015; 6:670. [PMID: 26191056 PMCID: PMC4486831 DOI: 10.3389/fmicb.2015.00670] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/19/2015] [Indexed: 01/06/2023] Open
Abstract
In individuals with human immunodeficiency virus type 1 (HIV-1) infection, CD4:CD8 lymphocyte ratio is often recognized as a quantitative outcome that reflects the critical role of both CD4(+) and CD8(+) T-cells in HIV-1 pathogenesis or disease progression. Our work aimed to first establish the dynamics and clinical relevance of CD4:CD8 ratio in a cohort of native Africans and then to examine its association with viral and host factors, including: (i) length of infection, (ii) demographics, (iii) HIV-1 viral load (VL), (iv) change in CD4(+) T-lymphocyte count (CD4 slope), (v) HIV-1 subtype, and (vi) host genetics, especially human leukocyte antigen (HLA) variants. Data from 499 HIV-1 seroconverters with frequent (monthly to quarterly) follow-up revealed that CD4:CD8 ratio was stable in the first 3 years of infection, with a modest correlation with VL and CD4 slope. A relatively normal CD4:CD8 ratio (>1.0) in early infection was associated with a substantial delay in disease progression to severe immunodeficiency (<350 CD4 cells/μl), regardless of other correlates of HIV-1 pathogenesis (adjusted hazards ratio (HR) = 0.43, 95% confidence interval (CI) = 0.29-0.63, P < 0.0001). Low VL (<10,000 copies/ml) and HLA-A*74:01 were the main predictors of CD4:CD8 ratio >1.0, but HLA variants (e.g., HLA-B*57 and HLA-B*81) previously associated with VL and/or CD4 trajectories in eastern and southern Africans had no obvious impact on CD4:CD8 ratio. Collectively, these findings suggest that CD4:CD8 ratio is a robust measure of immunologic health with both clinical and epidemiological implications.
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Affiliation(s)
- Jianming Tang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Xuelin Li
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL USA
| | - Matthew A Price
- International AIDS Vaccine Initiative, New York, NY USA ; Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco, CA USA
| | - Eduard J Sanders
- Centre for Geographic Medicine Research, Kenya Medical Research Institute, Kilifi Kenya ; Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford, Oxford UK
| | - Omu Anzala
- Kenya AIDS Vaccine Initiative, Nairobi Kenya
| | | | - Anatoli Kamali
- Uganda Virus Research Unit on AIDS, Medical Research Council/Uganda Virus Research Institute, Masaka Uganda
| | - Shabir Lakhi
- Zambia-Emory HIV Research Project, Lusaka Zambia
| | - Susan Allen
- Zambia-Emory HIV Research Project, Lusaka Zambia ; Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA USA
| | - Eric Hunter
- Emory Vaccine Center, Emory University, Atlanta, GA USA
| | - Richard A Kaslow
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL USA
| | - Jill Gilmour
- International AIDS Vaccine Initiative, Human Immunology Laboratory, Chelsea and Westminster Hospital, London UK
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28
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Kamali A, Price MA, Lakhi S, Karita E, Inambao M, Sanders EJ, Anzala O, Latka MH, Bekker LG, Kaleebu P, Asiki G, Ssetaala A, Ruzagira E, Allen S, Farmer P, Hunter E, Mutua G, Makkan H, Tichacek A, Brill IK, Fast P, Stevens G, Chetty P, Amornkul PN, Gilmour J. Creating an African HIV clinical research and prevention trials network: HIV prevalence, incidence and transmission. PLoS One 2015; 10:e0116100. [PMID: 25602351 PMCID: PMC4300215 DOI: 10.1371/journal.pone.0116100] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 12/03/2014] [Indexed: 11/18/2022] Open
Abstract
HIV epidemiology informs prevention trial design and program planning. Nine clinical research centers (CRC) in sub-Saharan Africa conducted HIV observational epidemiology studies in populations at risk for HIV infection as part of an HIV prevention and vaccine trial network. Annual HIV incidence ranged from below 2% to above 10% and varied by CRC and risk group, with rates above 5% observed in Zambian men in an HIV-discordant relationship, Ugandan men from Lake Victoria fishing communities, men who have sex with men, and several cohorts of women. HIV incidence tended to fall after the first three months in the study and over calendar time. Among suspected transmission pairs, 28% of HIV infections were not from the reported partner. Volunteers with high incidence were successfully identified and enrolled into large scale cohort studies. Over a quarter of new cases in couples acquired infection from persons other than the suspected transmitting partner.
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Affiliation(s)
- Anatoli Kamali
- Medical Research Council/Uganda Virus Research Institute, Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Matt A. Price
- International AIDS Vaccine Initiative (IAVI), New York, New York, United States of America
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America
- * E-mail:
| | - Shabir Lakhi
- Zambia-Emory HIV Research Project, Lusaka and Copperbelt, Zambia
| | | | - Mubiana Inambao
- Zambia-Emory HIV Research Project, Lusaka and Copperbelt, Zambia
| | - Eduard J. Sanders
- Centre for Geographic Medicine-Coast/KEMRI, Kilifi, Kenya
- University of Oxford, Oxford, United Kingdom
| | - Omu Anzala
- Kenya AIDS Vaccine Institute—Institute of Clinical Research, Nairobi, Kenya
| | - Mary H. Latka
- Aurum Institute, Rustenburg and Johannesburg, South Africa
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Pontiano Kaleebu
- Medical Research Council/Uganda Virus Research Institute, Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Gershim Asiki
- Medical Research Council/Uganda Virus Research Institute, Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Ali Ssetaala
- IAVI-UVRI HIV Vaccine Program, Entebbe and Masaka, Uganda
| | - Eugene Ruzagira
- Medical Research Council/Uganda Virus Research Institute, Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Susan Allen
- Emory University, Atlanta, Georgia, United States of America
| | - Paul Farmer
- Emory University, Atlanta, Georgia, United States of America
| | - Eric Hunter
- Emory University, Atlanta, Georgia, United States of America
| | - Gaudensia Mutua
- Kenya AIDS Vaccine Institute—Institute of Clinical Research, Nairobi, Kenya
| | - Heeran Makkan
- Aurum Institute, Rustenburg and Johannesburg, South Africa
| | - Amanda Tichacek
- Emory University, Atlanta, Georgia, United States of America
| | - Ilene K. Brill
- University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Pat Fast
- International AIDS Vaccine Initiative (IAVI), New York, New York, United States of America
| | | | | | - Pauli N. Amornkul
- International AIDS Vaccine Initiative (IAVI), New York, New York, United States of America
| | - Jill Gilmour
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom
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29
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Claiborne D, Prince J, Scully E, Kopycinski J, Macharia G, Nganou-Makamdop K, Tang J, Goepfert P, Yu T, Lakhi S, Kilembe W, Douek D, Gilmour J, Price M, Altfeld M, Allen S, Hunter E. Protective HLA Alleles Reduce Markers of Gut Damage and Microbial Translocation and Preserve the Cellular Immune Response during Acute HIV-1 Infection. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5063.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - Eileen Scully
- Ragon Institute of MGH, MIT and Harvard, Boston, MA, United States
| | | | | | | | - Jianming Tang
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Paul Goepfert
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Tianwei Yu
- Emory University, Atlanta, GA, United States
| | | | | | | | | | - Matthew Price
- IAVI, London, United Kingdom
- UCSF, Epidemiology & Biostatistics, San Francisco, CA, United States
| | - Marcus Altfeld
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Susan Allen
- Emory University, Atlanta, GA, United States
- ZEHRP, Lusaka, Zambia
| | - Eric Hunter
- Emory University, Atlanta, GA, United States
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30
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Prince JL, Claiborne DT, Macharia G, Micci L, Lawson B, Scully E, Kopycinski J, Vanderford T, Tang J, Yu T, Lakhi S, Kilembe W, Silvestri G, Goepfert P, Price MA, Altfeld M, Paiardini M, Gilmour J, Allen S, Hunter E. HIV Replicative Capacity of Transmitted Viruses Is Associated with Early Immune Activation, Exhaustion and Establishment of the Viral Reservoir. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5100.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - Gladys Macharia
- International AIDS Vaccine Initiative (IAVI), London, United Kingdom
| | - Luca Micci
- Emory University, Atlanta, GA, United States
| | | | - Eileen Scully
- Ragon Institute of MGH, MIT and Harvard, Boston, MA, United States
| | | | | | - Jianming Tang
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Tianwei Yu
- Emory University, Atlanta, GA, United States
| | - Shabir Lakhi
- Zambia Emory HIV Research Project, Lusaka, Zambia
| | | | | | - Paul Goepfert
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Matthew A. Price
- International AIDS Vaccine Initiative (IAVI), London, United Kingdom
- UCSF, San Francisco, CA, United States
| | - Marcus Altfeld
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | | | - Jill Gilmour
- International AIDS Vaccine Initiative (IAVI), London, United Kingdom
| | - Susan Allen
- Emory University, Atlanta, GA, United States
- Zambia Emory HIV Research Project, Lusaka, Zambia
| | - Eric Hunter
- Emory University, Atlanta, GA, United States
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31
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Allen S, Kilembe W, Inambao M, Vwalika B, Lakhi S, Wall K, Tichacek A, Streeb G. Choosing Appropriate Interventions and Defining Locally Achievable Standard of Care for HIV Prevention Trials in Africa: A Multidisciplinary Approach. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5205.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Susan Allen
- Rwanda Zambia HIV Research Group, Emory University, Pathology & Laboratory Medicine, School of Medicine, Atlanta, GA, United States
| | - William Kilembe
- Rwanda Zambia HIV Research Group, Emory University, Zambia Emory HIV Research Project, Lusaka, Zambia
| | - Mubiana Inambao
- Rwanda Zambia HIV Research Group, Zambia Emory HIV Research Project, Ndola, Zambia
| | - Bellington Vwalika
- Rwanda Zambia HIV Research Group, Zambia Emory HIV Research Project, Lusaka, Zambia
| | - Shabir Lakhi
- Rwanda Zambia HIV Research Group, Zambia Emory HIV Research Project, Lusaka, Zambia
| | - Kristin Wall
- Emory University School of Public Health, Epidemiology, Atlanta, GA, United States
| | - Amanda Tichacek
- Rwanda Zambia HIV Research Group, Emory University, Pathology & Laboratory Medicine, School of Medicine, Atlanta, GA, United States
| | - Gordon Streeb
- Emory University, Economics and Political Science, Atlanta, GA, United States
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Katowa-Mukwato P, Andrews B, Maimbolwa M, Lakhi S, Michelo C, Mulla Y, Banda SS. Medical students' clerkship experiences and self-perceived competence in clinical skills. Afr J Health Prof Educ 2014; 6:155-160. [PMID: 29607210 PMCID: PMC5875934 DOI: 10.7196/ajhpe.358] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
INTRODUCTION In a traditional curriculum, medical students are expected to acquire clinical competence through the apprenticeship model using the Halstedian "see one, do one, and teach one, approach". The University of Zambia School of Medicine used a traditional curriculum model from 1966 until 2011 when a competence-based curriculum was implemented. OBJECTIVE To explore medical students' clerkships experiences and self-perceived competence in clinical skills. METHODS A cross-sectional survey was conducted on 5th, 6th, and 7th year medical students of the University of Zambia, School of Medicine two months prior to final examinations. Students were asked to rate their clerkship experiences with respect to specific skills on a scale of 1 to 4 and their level of self-perceived competence on a scale of 1 to 3. Skills evaluated were in four main domains: history taking and communication, physical examination, procedural, and professionalism, team work and medical decision making. Using Statistical Package for Social Scientist (SPSS), correlations were performed between experiences and self-perceived competence on specific skills, within domains and overall. RESULTS Out of 197 clinical students 138 (70%) participated in the survey. The results showed significant increase in the proportion of students performing different skills and reporting feeling very competent with each additional clinical year. Overall correlations between experience and self-perceived competence were moderate (0.55). On individual skills, the highest correlation between experience and self-perceived competence were observed on mainly medical and surgical related procedural skills with the highest at 0.82 for nasal gastric tube insertion and 0.76 for endotracheal intubation. CONCLUSION Despite the general improvement in skills experiences and self-perceived competence, some deficiencies were noted as significant numbers of final year students had never attempted common important procedures especially those performed in emergency situations. Deficiencies in certain skills may call for incorporation of teaching/learning methods that broaden students' exposure to such skills.
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Affiliation(s)
- P Katowa-Mukwato
- Department of Medical Education Development, School of Medicine, University of Zambia, Lusaka, Zambia
- Department of Nursing Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - B Andrews
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
- Department of Internal Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - M Maimbolwa
- Department of Nursing Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - S Lakhi
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
| | - C Michelo
- Department of Public Health, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Y Mulla
- Department of Surgery, School of Medicine, University of Zambia, Lusaka, Zambia
| | - S S Banda
- Department of Medical Education Development, School of Medicine, University of Zambia, Lusaka, Zambia
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Li X, Price MA, He D, Kamali A, Karita E, Lakhi S, Sanders EJ, Anzala O, Amornkul PN, Allen S, Hunter E, Kaslow RA, Gilmour J, Tang J. Host genetics and viral load in primary HIV-1 infection: clear evidence for gene by sex interactions. Hum Genet 2014; 133:1187-97. [PMID: 24969460 PMCID: PMC4127002 DOI: 10.1007/s00439-014-1465-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 06/16/2014] [Indexed: 01/09/2023]
Abstract
Research in the past two decades has generated unequivocal evidence that host genetic variations substantially account for the heterogeneous outcomes following human immunodeficiency virus type 1 (HIV-1) infection. In particular, genes encoding human leukocyte antigens (HLA) have various alleles, haplotypes, or specific motifs that can dictate the set-point (a relatively steady state) of plasma viral load (VL), although rapid viral evolution driven by innate and acquired immune responses can obscure the long-term relationships between HLA genotypes and HIV-1-related outcomes. In our analyses of VL data from 521 recent HIV-1 seroconverters enrolled from eastern and southern Africa, HLA-A*03:01 was strongly and persistently associated with low VL in women (frequency = 11.3 %, P < 0.0001) but not in men (frequency = 7.7 %, P = 0.66). This novel sex by HLA interaction (P = 0.003, q = 0.090) did not extend to other frequent HLA class I alleles (n = 34), although HLA-C*18:01 also showed a weak association with low VL in women only (frequency = 9.3 %, P = 0.042, q > 0.50). In a reduced multivariable model, age, sex, geography (clinical sites), previously identified HLA factors (HLA-B*18, B*45, B*53, and B*57), and the interaction term for female sex and HLA-A*03:01 collectively explained 17.0 % of the overall variance in geometric mean VL over a 3-year follow-up period (P < 0.0001). Multiple sensitivity analyses of longitudinal and cross-sectional VL data yielded consistent results. These findings can serve as a proof of principle that the gap of "missing heritability" in quantitative genetics can be partially bridged by a systematic evaluation of sex-specific associations.
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Affiliation(s)
- Xuelin Li
- Department of Medicine, University of Alabama at Birmingham, 1665 University Boulevard, Birmingham, AL 35294 USA
| | - Matthew A. Price
- International AIDS Vaccine Initiative, New York City, NY USA
- Department of Epidemiology and Biostatistics, UCSF, San Francisco, CA USA
| | - Dongning He
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL USA
| | - Anatoli Kamali
- MRC/UVRI Uganda Virus Research Unit on AIDS, Masaka Site, Masaka, Uganda
| | | | - Shabir Lakhi
- Zambia-Emory HIV-1 Research Project, Lusaka, Zambia
| | - Eduard J. Sanders
- Centre for Geographic Medicine Research, Kenya Medical Research Institute (KEMRI), Kilifi, Kenya
- Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford, Headington, UK
| | - Omu Anzala
- Kenya AIDS Vaccine Initiative (KAVI), Nairobi, Kenya
| | - Pauli N. Amornkul
- International AIDS Vaccine Initiative, New York City, NY USA
- Department of Epidemiology and Biostatistics, UCSF, San Francisco, CA USA
| | - Susan Allen
- Projet San Francisco, Kigali, Rwanda
- Zambia-Emory HIV-1 Research Project, Lusaka, Zambia
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA USA
| | - Eric Hunter
- Vaccine Research Center, Emory University, Atlanta, GA USA
| | - Richard A. Kaslow
- International AIDS Vaccine Initiative, New York City, NY USA
- Present Address: Department of Veterans Affairs, Washington, DC, 20420 USA
| | - Jill Gilmour
- International AIDS Vaccine Initiative, Human Immunology Laboratory, Chelsea and Westminster Hospital, London, UK
| | - Jianming Tang
- Department of Medicine, University of Alabama at Birmingham, 1665 University Boulevard, Birmingham, AL 35294 USA
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL USA
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Atadzhanov M, Mwaba MH, Mukomena PN, Lakhi S, Mwaba P, Rayaprolu S, Meschia JF, Ross OA. Frequency of APOE, MTHFR and ACE polymorphisms in the Zambian population. BMC Res Notes 2014; 7:194. [PMID: 24679048 PMCID: PMC4230427 DOI: 10.1186/1756-0500-7-194] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 03/21/2014] [Indexed: 01/05/2023] Open
Abstract
Background Polymorphisms within the apolipoprotein-E (APOE), Methylenetetrahydrofolate reductase (MTHFR) and Angiotensin I-converting enzyme (ACE) genes has been associated with cardiovascular and cerebrovascular disorders, Alzheimer’s disease and other complex diseases in various populations. The aim of the study was to analyze the allelic and genotypic frequencies of APOE, MTHFR C677T and ACE I/D gene polymorphisms in the Zambian population. Results The allele frequencies of APOE polymorphism in the Zambian populations were 13.8%, 59.5% and 26.7% for the ε2, ε3 and ε4 alleles respectively. MTHFR C677T and ACE I/D allele frequencies were 8.6% and 13.8% for the T and D minor alleles respectively. The ε2ε2 genotype and TT genotype were absent in the Zambian population. The genetic distances between Zambian and other African and non-African major populations revealed an independent variability of these polymorphisms. Conclusion We found that the APOE ε3 allele and the I allele of the ACE were significantly high in our study population while there were low frequencies observed for the MTHFR 677 T and ACE D alleles. Our analysis of the APOE, MTHFR and ACE polymorphisms may provide valuable insight into the understanding of the disease risk in the Zambian population.
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Affiliation(s)
- Masharip Atadzhanov
- Department of Internal Medicine, University of Zambia, P,O,Box 51237, Lusaka, Zambia.
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Prentice HA, Price MA, Porter TR, Cormier E, Mugavero MJ, Kamali A, Karita E, Lakhi S, Sanders EJ, Anzala O, Amornkul PN, Allen S, Hunter E, Kaslow RA, Gilmour J, Tang J. Dynamics of viremia in primary HIV-1 infection in Africans: insights from analyses of host and viral correlates. Virology 2013; 449:254-62. [PMID: 24418560 DOI: 10.1016/j.virol.2013.11.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 10/11/2013] [Accepted: 11/14/2013] [Indexed: 12/15/2022]
Abstract
In HIV-1 infection, plasma viral load (VL) has dual implications for pathogenesis and public health. Based on well-known patterns of HIV-1 evolution and immune escape, we hypothesized that VL is an evolving quantitative trait that depends heavily on duration of infection (DOI), demographic features, human leukocyte antigen (HLA) genotypes and viral characteristics. Prospective data from 421 African seroconverters with at least four eligible visits did show relatively steady VL beyond 3 months of untreated infection, but host and viral factors independently associated with cross-sectional and longitudinal VL often varied by analytical approaches and sliding time windows. Specifically, the effects of age, HLA-B(⁎)53 and infecting HIV-1 subtypes (A1, C and others) on VL were either sporadic or highly sensitive to time windows. These observations were strengthened by the addition of 111 seroconverters with 2-3 eligible VL results, suggesting that DOI should be a critical parameter in epidemiological and clinical studies.
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Affiliation(s)
- Heather A Prentice
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Matthew A Price
- International AIDS Vaccine Initiative, New York City, NY, USA; Department of Epidemiology & Biostatistics, UCSF, San Francisco, CA, USA
| | - Travis R Porter
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Emmanuel Cormier
- International AIDS Vaccine Initiative, Human Immunology Laboratory, Chelsea and Westminster Hospital, London, UK
| | - Michael J Mugavero
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Anatoli Kamali
- MRC/UVRI Uganda Virus Research Unit on AIDS, Masaka Site, Masaka, Uganda
| | | | - Shabir Lakhi
- Zambia-Emory HIV Research Project, Lusaka, Zambia
| | - Eduard J Sanders
- Centre for Geographic Medicine Research, Kenya Medical Research Institute (KEMRI), Kilifi, Kenya; Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford, Headington, UK
| | - Omu Anzala
- Kenya AIDS Vaccine Initiative (KAVI), Nairobi, Kenya
| | | | - Susan Allen
- Zambia-Emory HIV Research Project, Lusaka, Zambia; Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Eric Hunter
- Vaccine Research Center, Emory University, Atlanta, GA, USA
| | - Richard A Kaslow
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jill Gilmour
- International AIDS Vaccine Initiative, Human Immunology Laboratory, Chelsea and Westminster Hospital, London, UK
| | - Jianming Tang
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA; Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Atadzhanov M, Mwaba MH, Mukomena PN, Lakhi S, Rayaprolu S, Ross OA, Meschia JF. Association of the APOE, MTHFR and ACE Genes Polymorphisms and Stroke in Zambian Patients. Neurol Int 2013; 5:e20. [PMID: 24416484 PMCID: PMC3883065 DOI: 10.4081/ni.2013.e20] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 07/16/2013] [Accepted: 07/22/2013] [Indexed: 11/23/2022] Open
Abstract
The aim of the present study was to investigate the association of APOE, MTHFR and ACE polymorphisms with stroke in the Zambian population. We analyzed 41 stroke patients and 116 control subjects all of Zambian origin for associations between the genotype of the APOE, MTHFR and ACE polymorphisms and stroke. The APOE ε2ε4 genotype showed increased risk for hemorrhagic stroke (P<0.05) and also a high risk for ischemic stroke (P=0.05). There was complete absence of the APOE ε2ε2 and the MTHFR TT genotypes in the Zambian population. The difference between cases and controls was not significant for the other genetic variants when analyzed for relationship between stroke, stroke subtype and genotype. We show that genetic variation at the APOE locus affects susceptibility to stroke. No detectable association were observed for the MTHFR and ACE genotypes and stroke in the Zambian population.
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Affiliation(s)
- Masharip Atadzhanov
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia; Departments of
| | - Mwila H Mwaba
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia; Departments of
| | - Patrice N Mukomena
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia; Departments of
| | - Shabir Lakhi
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia; Departments of
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Hachaambwa LM, Zachary D, Sikazwe I, Lakhi S, Sheneberger R. B103 The Zambian Medical Education Program. J Acquir Immune Defic Syndr 2013. [DOI: 10.1097/01.qai.0000429204.09356.3f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yue L, Prentice HA, Farmer P, Song W, He D, Lakhi S, Goepfert P, Gilmour J, Allen S, Tang J, Kaslow RA, Hunter E. Cumulative impact of host and viral factors on HIV-1 viral-load control during early infection. J Virol 2013; 87:708-15. [PMID: 23115285 PMCID: PMC3554094 DOI: 10.1128/jvi.02118-12] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 10/24/2012] [Indexed: 12/22/2022] Open
Abstract
In HIV-1 infection, the early set-point viral load strongly predicts both viral transmission and disease progression. The factors responsible for the wide spectrum of set-point viral loads are complex and likely reflect an interplay between the transmitted virus and genetically defined factors in both the transmitting source partner and the seroconverter. Indeed, analysis of 195 transmission pairs from Lusaka, Zambia, revealed that the viral loads in transmitting source partners contributed only ∼2% of the variance in early set-point viral loads of seroconverters (P = 0.046 by univariable analysis). In multivariable models, early set-point viral loads in seroconverting partners were a complex function of (i) the viral load in the source partner, (ii) the gender of the seroconverter, (iii) specific HLA class I alleles in the newly infected partner, and (iv) sharing of HLA-I alleles between partners in a transmission pair. Each of these factors significantly and independently contributed to the set-point viral load in the newly infected partner, accounting for up to 37% of the variance observed and suggesting that many factors operate in concert to define the early virological phenotype in HIV-1 infection.
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Affiliation(s)
- Ling Yue
- Emory Vaccine Center and Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - Heather A. Prentice
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Paul Farmer
- Emory Vaccine Center and Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - Wei Song
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Dongning He
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Shabir Lakhi
- Zambia-Emory HIV Research Project, Lusaka, Zambia
| | - Paul Goepfert
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jill Gilmour
- International AIDS Vaccine Initiative, London, England
| | - Susan Allen
- Department of Pathology, Emory University, Atlanta, Georgia, USA
| | - Jianming Tang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Richard A. Kaslow
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Eric Hunter
- Emory Vaccine Center and Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Department of Pathology, Emory University, Atlanta, Georgia, USA
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Namangala B, Hachaambwa L, Kajino K, Mweene AS, Hayashida K, Simuunza M, Simukoko H, Choongo K, Chansa P, Lakhi S, Moonga L, Chota A, Ndebe J, Nsakashalo-Senkwe M, Chizema E, Kasonka L, Sugimoto C. The use of Loop-mediated Isothermal Amplification (LAMP) to detect the re-emerging Human African Trypanosomiasis (HAT) in the Luangwa and Zambezi valleys. Parasit Vectors 2012; 5:282. [PMID: 23211002 PMCID: PMC3533913 DOI: 10.1186/1756-3305-5-282] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 11/26/2012] [Indexed: 11/29/2022] Open
Abstract
Background Loop-mediated isothermal amplification (LAMP) is a novel strategy which amplifies DNA with high sensitivity and rapidity under isothermal conditions. In the present study, the performance of the repetitive insertion mobile element (RIME)-LAMP and human serum resistance-associated gene (SRA)-LAMP assays were evaluated using clinical specimens obtained from four male patients from Luangwa and Zambezi valleys in Zambia and Zimbabwe, respectively. Findings The cases reported in this preliminary communication were all first diagnosed by microscopy, through passive surveillance, and confirmed by both RIME-LAMP and SRA-LAMP. A good correlation between microscopy and LAMP was observed and contributed to staging and successful treatment of patient. RIME-LAMP and SRA-LAMP complimented each other well in all the cases. Conclusions Both RIME-LAMP and SRA-LAMP were able to detect Trypanosoma brucei rhodesiense DNA in patient blood and CSF and hence confirmed HAT in the parasitaemic patients. Our study indicates that the LAMP technique is a potential tool for HAT diagnosis, staging and may be useful for making therapeutic decisions. However, no statistically significant conclusion may be drawn due to the limited sample size used in the present study. It is thus imperative to conduct a detailed study to further evaluate the potential of LAMP as a bedside diagnostic test for HAT.
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Affiliation(s)
- Boniface Namangala
- Department of Paraclinical studies, School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia.
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Kilembe W, Dinh C, Lakhi S, Karita E, Bayingana R, Price M, Allen S, Hunter E. HIV disease progression compared by linkage status in Rwanda and Zambia. Retrovirology 2012. [PMCID: PMC3441259 DOI: 10.1186/1742-4690-9-s2-p161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kilembe W, Keeling M, Karita E, Lakhi S, Chetty P, Price MA, Makkan H, Latka M, Likoti M, Ilukui K, Hurlston M, Allen S, Stevens G, Hunter E. Failure of a novel, rapid antigen and antibody combination test to detect antigen-positive HIV infection in African adults with early HIV infection. PLoS One 2012; 7:e37154. [PMID: 22715363 PMCID: PMC3371037 DOI: 10.1371/journal.pone.0037154] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 04/15/2012] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Acute HIV infection (prior to antibody seroconversion) represents a high-risk window for HIV transmission. Development of a test to detect acute infection at the point-of-care is urgent. METHODS Volunteers enrolled in a prospective study of HIV incidence in four African cities, Kigali in Rwanda and Ndola, Kitwe and Lusaka in Zambia, were tested regularly for HIV by rapid antibody test and p24 antigen ELISA. Five subgroups of samples were also tested by the Determine Ag/Ab Combo test 1) Antigen positive, antibody negative (acute infection); 2) Antigen positive, antibody positive; 3) Antigen negative, antibody positive; 4) Antigen negative, antibody negative; and 5) Antigen false positive, antibody negative (HIV uninfected). A sixth group included serial dilutions from a p24 antigen-positive control sample. Combo test results were reported as antigen positive, antibody positive, or both. RESULTS Of 34 group 1 samples with VL between 5x105 and >1.5x107 copies/mL (median 3.5x106), 1 (2.9%) was detected by the Combo antigen component, 7 (20.6%) others were positive by the Combo antibody component. No group 2 samples were antigen positive by the Combo test (0/18). Sensitivity of the Combo antigen test was therefore 1.9% (1/52, 95% CI 0.0, 9.9). One false positive Combo antibody result (1/30, 3.3%) was observed in group 4. No false-positive Combo antigen results were observed. The Combo antigen test was positive in group 6 at concentrations of 80 pg/mL, faintly positive at 40 and 20 pg/mL, and negative thereafter. The p24 ELISA antigen test remained positive at 5 pg/mL. CONCLUSIONS Although the antibody component of the Combo test detected antibodies to HIV earlier than the comparison antibody tests used, less than 2% of the cases of antigen-positive HIV infection were detected by the Combo antigen component. The development of a rapid point-of-care test to diagnose acute HIV infection remains an urgent goal.
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Affiliation(s)
- William Kilembe
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
- * E-mail: (WK); (MK)
| | - Michelle Keeling
- Emory University, Atlanta, Georgia, United States of America
- * E-mail: (WK); (MK)
| | - Etienne Karita
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
| | - Shabir Lakhi
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
| | - Paramesh Chetty
- International AIDS Vaccine Initiative, New York, New York, United States of America
| | - Matt A. Price
- International AIDS Vaccine Initiative, New York, New York, United States of America
| | - Heeran Makkan
- Aurum Institute for Health Research, Johannesburg, Republic of South Africa
| | - Mary Latka
- Aurum Institute for Health Research, Johannesburg, Republic of South Africa
| | - Morongwe Likoti
- Aurum Institute for Health Research, Johannesburg, Republic of South Africa
| | - Kenneth Ilukui
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
| | - Mackenzie Hurlston
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
| | - Susan Allen
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
| | - Gwynn Stevens
- International AIDS Vaccine Initiative, New York, New York, United States of America
| | - Eric Hunter
- Rwanda Zambia HIV Research Group, Kigali, Rwanda, and Lusaka, Kitwe and Ndola, Zambia
- Emory University, Atlanta, Georgia, United States of America
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Pantazis N, Morrison C, Amornkul PN, Lewden C, Salata RA, Minga A, Chipato T, Jaffe H, Lakhi S, Karita E, Porter K, Meyer L, Touloumi G. Differences in HIV natural history among African and non-African seroconverters in Europe and seroconverters in sub-Saharan Africa. PLoS One 2012; 7:e32369. [PMID: 22412867 PMCID: PMC3295758 DOI: 10.1371/journal.pone.0032369] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2011] [Accepted: 01/26/2012] [Indexed: 11/18/2022] Open
Abstract
Introduction It is unknown whether HIV treatment guidelines, based on resource-rich country cohorts, are applicable to African populations. Methods We estimated CD4 cell loss in ART-naïve, AIDS-free individuals using mixed models allowing for random intercept and slope, and time from seroconversion to clinical AIDS, death and antiretroviral therapy (ART) initiation by survival methods. Using CASCADE data from 20 European and 3 sub-Saharan African (SSA) cohorts of heterosexually-infected individuals, aged ≥15 years, infected ≥2000, we compared estimates between non-African Europeans, Africans in Europe, and Africans in SSA. Results Of 1,959 (913 non-Africans, 302 Europeans - African origin, 744 SSA), two-thirds were female; median age at seroconversion was 31 years. Individuals in SSA progressed faster to clinical AIDS but not to death or non-TB AIDS. They also initiated ART later than Europeans and at lower CD4 cell counts. In adjusted models, Africans (especially from Europe) had lower CD4 counts at seroconversion and slower CD4 decline than non-African Europeans. Median (95% CI) CD4 count at seroconversion for a 15–29 year old woman was 607 (588–627) (non-African European), 469 (442–497) (European - African origin) and 570 (551–589) (SSA) cells/µL with respective CD4 decline during the first 4 years of 259 (228–289), 155 (110–200), and 199 (174–224) cells/µL (p<0.01). Discussion Despite differences in CD4 cell count evolution, death and non-TB AIDS rates were similar across study groups. It is therefore prudent to apply current ART guidelines from resource-rich countries to African populations.
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Affiliation(s)
- Nikos Pantazis
- Department of Hygiene, Epidemiology and Medical Statistics, University of Athens Medical School, Athens, Greece.
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Chimese SM, Andrews B, Lakhi S. The Etiology And Outcome Of Adult Patients Presenting With Sepsis To The University Teaching Hospital, Lusaka, Zambia. Med J Zambia 2012; 39:19-22. [PMID: 29097825 PMCID: PMC5663186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Sepsis accounts for a significant burden of morbidity and mortality.In developed world, it is implicated as the second leading cause of non-cardiac death. Mortality from sepsis is on the increase with a mortality rate of 33-61%. In spite of the high burden of sepsis in sub Saharan Africa, data regarding the etiology and outcome of septic patients is limited. We conducted a prospective cohort study to describe the etiology, characteristic and outcome of patients presenting with sepsis to the University Teaching Hospital in Lusaka, Zambia. METHODS Patients who met the inclusion criteria were enrolled into the study and after a thorough examination, bloods were drawn for full blood count, urea and electrolytes, liver function tests and for culture. Samples for culture were collected under aseptic techniques and cultured for aerobic organisms. Biochemical and bacteriological methods were used to identify the isolates and antibiotic sensitivity patterns were determined using agar diffusion methods. Patients were then followed up until they either demised or were discharge. RESULTS A total of 161 patients were enrolled of which 110(68%) were HIV positive and 23(14%) had unknown HIV status. Bacteremia was found in 39 (24%) with the most isolated organism being staphylococcus aureus. Mortality in our cohort of septic patients was determinedat 40%. Identified predictors for in patient mortality were low admission Glasgow coma scale[OR 11.2(CI 3.5-36.4)], positive blood culture[OR 2.38(CI 1.14-4.95)] and HIV status, those with unknown HIV status were more likely to die than those who were HIV negative[OR 8.38(CI2.36-29.7)]. CONCLUSION Most of the septic patients presenting to UTH had advanced immunosuppression (WHO stage 3 and 4) and had a high mortality rate. Staphylococcus aureus and streptococcus pneumoniae were the highest isolates. Identified predictors for in patient mortality could be used to try and improve outcome in septic patients at UTH.
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Affiliation(s)
| | - Ben Andrews
- Institute for Global Health, Vanderbilt University, Nashville, USA
| | - Shabir Lakhi
- Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia
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Kapembwa KC, Goldman JD, Lakhi S, Banda Y, Bowa K, Vermund SH, Mulenga J, Chama D, Chi BH. HIV, Hepatitis B, and Hepatitis C in Zambia. J Glob Infect Dis 2011; 3:269-74. [PMID: 21887060 PMCID: PMC3162815 DOI: 10.4103/0974-777x.83534] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objectives Epidemiologic data of HIV and viral hepatitis coinfection are needed in sub-Saharan Africa to guide health policy for hepatitis screening and optimized antiretroviral therapy (ART). Materials and Methods: We screened 323 HIV-infected, ART-eligible adults for hepatitis B surface antigen (HBsAg) and hepatitis C antibody (HCV Ab) at a tertiary hospital in Lusaka, Zambia. We collected basic demographic, medical, and laboratory data to determine predictors for coinfection. Results: Of 323 enrolled patients, 32 (9.9%; 95% CI=6.7–13.2%) were HBsAg positive, while 4 (1.2%; 95% CI=0.03–2.4%) were HCV Ab positive. Patients with hepatitis B coinfection were more likely to be <40 years (84.4% vs. 61.4%; P=0.01) when compared to those who were not coinfected. Patients with active hepatitis B were more likely to have mild to moderately elevated AST/ALT (40–199 IU/L, 15.8% vs. 5.4%; P=0.003). Highly elevated liver enzymes (>200 IU/L) was uncommon and did not differ between the two groups (3.4% vs. 2.3%; P=0.5). We were unable to determine predictors of hepatitis C infection due to the low prevalence of disease. Conclusions: HIV and hepatitis B coinfection was common among patients initiating ART at this tertiary care facility. Routine screening for hepatitis B should be considered for HIV-infected persons in southern Africa.
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Affiliation(s)
- Kenneth C Kapembwa
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
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Chimese SM, Andrews B, Lakhi S. Clinical characteristics, management, and outcomes of sepsis in Lusaka, Zambia. Crit Care 2011. [PMCID: PMC3239283 DOI: 10.1186/cc10409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Price MA, Wallis CL, Lakhi S, Karita E, Kamali A, Anzala O, Sanders EJ, Bekker LG, Twesigye R, Hunter E, Kaleebu P, Kayitenkore K, Allen S, Ruzagira E, Mwangome M, Mutua G, Amornkul PN, Stevens G, Pond SLK, Schaefer M, Papathanasopoulos MA, Stevens W, Gilmour J. Transmitted HIV type 1 drug resistance among individuals with recent HIV infection in East and Southern Africa. AIDS Res Hum Retroviruses 2011; 27:5-12. [PMID: 21091377 PMCID: PMC3045073 DOI: 10.1089/aid.2010.0030] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To characterize WHO-defined transmitted HIV drug resistance mutation (TDRM) data from recently HIV-infected African volunteers, we sequenced HIV (pol) and evaluated for TDRM the earliest available specimens from ARV-naive volunteers diagnosed within 1 year of their estimated date of infection at eight research centers in sub-Saharan Africa. TDRMs were detected in 19/408 (5%) volunteers. The prevalence of TDRMs varied by research center, from 5/26 (19%) in Entebbe, 6/78 (8%) in Kigali, 2/49 (4%) in Kilifi, to 3/106 (3%) in Lusaka. One of five volunteers from Cape Town (20%) had TDRMs. Despite small numbers, our data suggest an increase in DRMs by year of infection in Zambia (p = 0.004). The prevalence observed in Entebbe was high across the entire study. ARV history data from 12 (63%) HIV-infected sexual partners were available; 3 reported ARV use prior to transmission. Among four partners with sequence data available, transmission linkage was confirmed and two had the same TDRMs as the newly infected volunteer (both K103N). As ARV therapy continues to increase in availability throughout Africa, monitoring incident virus strains for the presence of TDRMs should be a priority. Early HIV infection cohorts provide an excellent and important platform to monitor the development of TDRMs to inform treatment guidelines, drug choices, and strategies for secondary prevention of TDRM transmission.
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Affiliation(s)
- Matt A Price
- International AIDS Vaccine Initiative, San Francisco, California, USA.
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Banda J, Mweemba A, Siziya S, Mweene M, Andrews B, Lakhi S. Prevalence and Factors Associated with Renal Dysfunction in HIV Positive and Negative Adults at the University Teaching Hospital, in Lusaka. Med J Zambia 2010; 37:136-142. [PMID: 24363467 PMCID: PMC3866919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Despite having the highest disease burden of HIV, Sub-Saharan Africa has limited data on HIV related kidney disease with most available data coming from the developed countries. Kidney disease is a recognised complication in HIV infected patients presenting with acute renal failure (ARF) or chronic kidney disease (CKD). This study investigated the prevalence and risk factors associated with renal dysfunction among hospitalised HIV infected patients at the University Teaching Hospital (UTH), Lusaka. METHODOLOGY We conducted a cross sectional study at the University Teaching Hospital Lusaka, in Zambia. Inclusion criteria were hospitalised patients aged 16years and above who consented to the study. Both HIV infected and uninfected patients were included in the study. After obtaining demographic information, study participants were screened for HIV upon their consenting for the test. A full clinical history and examination was done by study physician to determine factors associated with renal dysfunction. RESULTS Of the 300 recruited hospitalised patients in this cross sectional study, 142(47%) were HIV infected. We observed a high prevalence of renal dysfunction among hospitalised HIV infected patients compared to uninfected patients (42% vs. 27%, adjusted OR 1.99, 95% CI 1.20-3.28). They had a twofold increased likelihood of developing kidney dysfunction (OR 1.96,95 CI%; 1.21-3.17). The presence of vomiting was strongly associated with renal dysfunction in both HIV positive (AOR 7.77, 95% CI 2.46-24-53) and negative (AOR4.83, 95%CI 1.40-16.66) subgroups. WHO stage III was associated with renal dysfunction in HIV infected patients. Tenofovir use, (a first line antiretroviral drug in Zambia) and hypotension were not significant factors associated with kidney disease after adjusting for other clinical parameters. CONCLUSION Renal dysfunction is significantly higher among hospitalised HIV infected compared to uninfected, however tenofovir and hypotension were not associated with renal dysfunction.
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Affiliation(s)
- Justor Banda
- School of Medicine, University of Zambia, Lusaka Zambia
| | - Aggrey Mweemba
- Department of Medicine, University Teaching Hospital, Lusaka, Zambia
| | - Seter Siziya
- Department of Public Health, University of Zambia
| | - Morgan Mweene
- Department of Medicine, University Teaching Hospital, Lusaka, Zambia
| | - Ben Andrews
- School of Medicine, University of Zambia, Lusaka Zambia
- Vanderbilt Universities, Nashville, TN, USA
| | - Shabir Lakhi
- Department of Medicine, University Teaching Hospital, Lusaka, Zambia
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Wallis CL, Papathanasopoulos MA, Lakhi S, Karita E, Kamali A, Kaleebu P, Sanders E, Anzala O, Bekker LG, Stevens G, de Wit TFR, Stevens W. Affordable in-house antiretroviral drug resistance assay with good performance in non-subtype B HIV-1. J Virol Methods 2009; 163:505-8. [PMID: 19917318 DOI: 10.1016/j.jviromet.2009.11.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 10/20/2009] [Accepted: 11/05/2009] [Indexed: 10/20/2022]
Abstract
The introduction of antiretroviral (ARV) therapy in resource-poor settings is effective in suppressing HIV-1 replication and prolonging life of infected individuals. This has led to a demand for affordable HIV-1 drug resistance assays, since treatment failure due to development of drug resistance is common. This study developed and evaluated an affordable "in-house" genotyping assay to monitor HIV-1 drug resistance in Africa, particularly South Africa. An "in-house" assay using automated RNA extraction, and subtype C specific PCR and sequencing primers was developed and successfully evaluated 396 patient samples (viral load ranges 1000-1.6 million RNA copies/ml). The "in-house" assay was validated by comparing sequence data and drug resistance profiles from 90 patient and 10 external quality control samples to data from the ViroSeq HIV-1 Genotyping kit. The "in-house" assay was more efficient, amplifying all 100 samples, compared to 91 samples using Viroseq. The "in house" sequences were 99.2% homologous to the ViroSeq sequences, and identical drug resistance mutation profiles were observed in 96 samples. Furthermore, the "in-house" assay genotyped 260 of 295 samples from seven African sites, where 47% were non-subtype C. Overall, the newly validated "in-house" drug resistance assay is suited for use in Africa as it overcomes the obstacle of subtype diversity.
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Affiliation(s)
- Carole L Wallis
- Department of Molecular Medicine and Haematology, University of the Witwatersrand, Johannesburg, South Africa.
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Price MA, Allen S, Anzala O, Bekker L, Gilmour J, Kaleebu P, Kamali A, Karita E, Lakhi S, Latka M, Twesigye R, Sanders EJ, Amornkul P, Stevens G, Thomson H. P06-08. Building an African HIV preventive trial network. Retrovirology 2009. [PMCID: PMC2768003 DOI: 10.1186/1742-4690-6-s3-p97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Crawford H, Lumm W, Leslie A, Schaefer M, Boeras D, Prado JG, Tang J, Farmer P, Ndung'u T, Lakhi S, Gilmour J, Goepfert P, Walker BD, Kaslow R, Mulenga J, Allen S, Goulder PJR, Hunter E. Evolution of HLA-B*5703 HIV-1 escape mutations in HLA-B*5703-positive individuals and their transmission recipients. ACTA ACUST UNITED AC 2009; 206:909-21. [PMID: 19307327 PMCID: PMC2715113 DOI: 10.1084/jem.20081984] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
HLA-B*57 is the class I allele most consistently associated with control of human immunodeficiency virus (HIV) replication, which may be linked to the specific HIV peptides that this allele presents to cytotoxic T lymphocytes (CTLs), and the resulting efficacy of these cellular immune responses. In two HIV C clade–infected populations in South Africa and Zambia, we sought to elucidate the role of HLA-B*5703 in HIV disease outcome. HLA-B*5703–restricted CTL responses select for escape mutations in three Gag p24 epitopes, in a predictable order. We show that the accumulation of these mutations sequentially reduces viral replicative capacity in vitro. Despite this, in vivo data demonstrate that there is ultimately an increase in viral load concomitant with evasion of all three HLA-B*5703–restricted CTL responses. In HLA-B*5703–mismatched recipients, the previously described early benefit of transmitted HLA-B*5703–associated escape mutations is abrogated by the increase in viral load coincident with reversion. Rapid disease progression is observed in HLA-matched recipients to whom mutated virus is transmitted. These data demonstrate that, although costly escape from CTL responses can progressively attenuate the virus, high viral loads develop in the absence of adequate, continued CTL responses. These data underline the need for a CTL vaccine against multiple conserved epitopes.
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