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Ntabadde K, Kagaayi J, Ssempijja V, Feng X, Kairania R, Lubwama J, Ssekubugu R, Yeh PT, Ssekasanvu J, Tobian AAR, Kennedy CE, Mills LA, Alamo S, Kreniske P, Santelli J, Nelson LJ, Reynolds SJ, Chang LW, Nakigozi G, Grabowski MK. Pre-exposure prophylaxis (PrEP) knowledge, use, and discontinuation among Lake Victoria fisherfolk in Uganda: a cross-sectional population-based study. medRxiv 2024:2024.03.29.24305076. [PMID: 38585794 PMCID: PMC10996747 DOI: 10.1101/2024.03.29.24305076] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Background There are limited population-level data on the pre-exposure prophylaxis (PrEP) care continuum in eastern Africa. Here, we assessed the PrEP care continuum following PrEP rollout in a Ugandan community with ~40% HIV seroprevalence. Methods We used cross-sectional population-based data collected between September 3 and December 19, 2018 from a Lake Victoria fishing community in southern Uganda to measure levels of self-reported PrEP knowledge, ever use, and discontinuation following 2017 PrEP rollout via a U.S. President's Emergency Plan for AIDS Relief (PEPFAR)-supported phased implementation program. Our analysis included HIV-seronegative persons reporting having ever received an HIV test result. We examined associations between demographic, behavioral, and health utilization factors with each outcome using age-adjusted modified Poisson regression. Results There were 1,401 HIV-seronegative participants, of whom 1,363 (97.3%) reported ever receiving an HIV test result. Median age was 29 years (IQR: 23-36), and 42.3% (n=577) were women. Most (85.5%; n=1,166) participants reported PrEP knowledge, but few (14.5%; n=197) reported ever using PrEP. Among 375 (47.7%) men and 169 (29.3%) women PrEP-eligible at time of survey, 18.9% (n=71) and 27.8% (n=47) reported ever using PrEP, respectively. Over half (52.3%, n=103) of those who had ever used PrEP, self-reported current use. Conclusion In this Lake Victoria fishing community, there were low levels of PrEP use despite high levels of PrEP awareness and eligibility, particularly among men. Efforts that enhance awareness of HIV risk and increase PrEP accessibility may help increase PrEP use among HIV-seronegative persons in African settings with high HIV burden.
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Affiliation(s)
| | - Joseph Kagaayi
- Rakai Health Sciences Program, Kalisizo, Uganda
- Makerere University School of Public Health, Kampala, Uganda
| | - Victor Ssempijja
- Rakai Health Sciences Program, Kalisizo, Uganda
- Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Xinyi Feng
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | | | - Ping Teresa Yeh
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Aaron A R Tobian
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Caitlin E. Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lisa A. Mills
- United States Centers for Disease Control and Prevention, Uganda, Division of Global HIV & TB, Kampala Uganda
| | - Stella Alamo
- United States Centers for Disease Control and Prevention, Uganda, Division of Global HIV & TB, Kampala Uganda
| | - Philip Kreniske
- Community Health and Social Sciences Department, Graduate School of Public Health and Health Policy, City University of New York (CUNY)
| | - John Santelli
- Department of Population and Family Health and Pediatrics, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Lisa J. Nelson
- United States Centers for Disease Control and Prevention, Uganda, Division of Global HIV & TB, Kampala Uganda
| | - Steven J. Reynolds
- Rakai Health Sciences Program, Kalisizo, Uganda
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
- Division of Infectious Diseases, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Larry William Chang
- Rakai Health Sciences Program, Kalisizo, Uganda
- Division of Infectious Diseases, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - M. Kate Grabowski
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Rakai Health Sciences Program, Kalisizo, Uganda
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
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2
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Rosen JG, Ssekubugu R, Chang LW, Ssempijja V, Galiwango RM, Ssekasanvu J, Ndyanabo A, Kisakye A, Nakigozi G, Rucinski KB, Patel EU, Kennedy CE, Nalugoda F, Kigozi G, Ratmann O, Nelson LJ, Mills LA, Kabatesi D, Tobian AAR, Quinn TC, Kagaayi J, Reynolds SJ, Grabowski MK. Temporal dynamics and drivers of durable HIV viral load suppression and persistent high- and low-level viraemia during Universal Test and Treat scale-up in Uganda: a population-based study. J Int AIDS Soc 2024; 27:e26200. [PMID: 38332519 PMCID: PMC10853573 DOI: 10.1002/jia2.26200] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 12/04/2023] [Indexed: 02/10/2024] Open
Abstract
INTRODUCTION Population-level data on durable HIV viral load suppression (VLS) following the implementation of Universal Test and Treat (UTT) in Africa are limited. We assessed trends in durable VLS and viraemia among persons living with HIV in 40 Ugandan communities during the UTT scale-up. METHODS In 2015-2020, we measured VLS (<200 RNA copies/ml) among participants in the Rakai Community Cohort Study, a longitudinal population-based HIV surveillance cohort in southern Uganda. Persons with unsuppressed viral loads were characterized as having low-level (200-999 copies/ml) or high-level (≥1000 copies/ml) viraemia. Individual virologic outcomes were assessed over two consecutive RCCS survey visits (i.e. visit-pairs; ∼18-month visit intervals) and classified as durable VLS (<200 copies/ml at both visits), new/renewed VLS (<200 copies/ml at follow-up only), viral rebound (<200 copies/ml at initial visit only) or persistent viraemia (≥200 copies/ml at both visits). Population prevalence of each outcome was assessed over calendar time. Community-level prevalence and individual-level predictors of persistent high-level viraemia were also assessed using multivariable Poisson regression with generalized estimating equations. RESULTS Overall, 3080 participants contributed 4604 visit-pairs over three survey rounds. Most visit-pairs (72.4%) exhibited durable VLS, with few (2.5%) experiencing viral rebound. Among those with any viraemia at the initial visit (23.5%, n = 1083), 46.9% remained viraemic through follow-up, 91.3% of which was high-level viraemia. One-fifth (20.8%) of visit-pairs exhibiting persistent high-level viraemia self-reported antiretroviral therapy (ART) use for ≥12 months. Prevalence of persistent high-level viraemia varied substantially across communities and was significantly elevated among young persons aged 15-29 years (vs. 40- to 49-year-olds; adjusted risk ratio [adjRR] = 2.96; 95% confidence interval [95% CI]: 2.21-3.96), males (vs. females; adjRR = 2.40, 95% CI: 1.87-3.07), persons reporting inconsistent condom use with non-marital/casual partners (vs. persons with marital/permanent partners only; adjRR = 1.38, 95% CI: 1.10-1.74) and persons reporting hazardous alcohol use (adjRR = 1.09, 95% CI: 1.03-1.16). The prevalence of persistent high-level viraemia was highest among males <30 years (32.0%). CONCLUSIONS Following universal ART provision, most persons living with HIV in south-central Uganda are durably suppressed. Among persons exhibiting any viraemia, nearly half exhibited high-level viraemia for ≥12 months and reported higher-risk behaviours associated with onward HIV transmission. Intensified efforts linking individuals to HIV treatment services could accelerate momentum towards HIV epidemic control.
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Affiliation(s)
- Joseph Gregory Rosen
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | | | - Larry W. Chang
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Rakai Health Sciences ProgramEntebbeUganda
- Division of Infectious DiseasesJohns Hopkins School of MedicineBaltimoreMarylandUSA
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Victor Ssempijja
- Rakai Health Sciences ProgramEntebbeUganda
- Clinical Monitoring Research Program DirectorateFrederick National Laboratory for Cancer ResearchFrederickMarylandUSA
| | | | - Joseph Ssekasanvu
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Rakai Health Sciences ProgramEntebbeUganda
| | | | | | | | - Katherine B. Rucinski
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Eshan U. Patel
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Caitlin E. Kennedy
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Rakai Health Sciences ProgramEntebbeUganda
| | | | | | | | - Lisa J. Nelson
- Division of Global HIV and TBCenters for Disease Control and PreventionKampalaUganda
| | - Lisa A. Mills
- Division of Global HIV and TBCenters for Disease Control and PreventionKampalaUganda
| | - Donna Kabatesi
- Division of Global HIV and TBCenters for Disease Control and PreventionKampalaUganda
| | - Aaron A. R. Tobian
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Department of PathologyJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Thomas C. Quinn
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Rakai Health Sciences ProgramEntebbeUganda
- Division of Infectious DiseasesJohns Hopkins School of MedicineBaltimoreMarylandUSA
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Division of Intramural ResearchNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthBethesdaMarylandUSA
| | | | - Steven J. Reynolds
- Rakai Health Sciences ProgramEntebbeUganda
- Division of Infectious DiseasesJohns Hopkins School of MedicineBaltimoreMarylandUSA
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Division of Intramural ResearchNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthBethesdaMarylandUSA
| | - Mary Kathryn Grabowski
- Rakai Health Sciences ProgramEntebbeUganda
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Department of PathologyJohns Hopkins School of MedicineBaltimoreMarylandUSA
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Namale-Matovu J, Kusolo R, Serunjogi R, Barlow-Mosha L, Mumpe-Mwanja D, Niombi N, Kalibbala D, Williamson D, Valencia D, Moore CA, Mwambi K, Nelson LJ, Namukanja-Mayambala PM, Williams JL, Mai CT, Qi YP, Musoke P. Strengthening capacity of health workers to diagnose birth defects in Ugandan hospitals from 2015 to 2021. BMC Med Educ 2023; 23:766. [PMID: 37833686 PMCID: PMC10576368 DOI: 10.1186/s12909-023-04760-w] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
BACKGROUND Limited diagnostic capabilities, resources and health worker skills have deterred the advancement of birth defects surveillance systems in most low- and middle-income countries (LMICs). Empowering health workers to identify and diagnose major external birth defects (BDs) is crucial to establishing effective hospital-based BD surveillance. Makerere University-Johns Hopkins University (MU-JHU) Research Collaboration BD Surveillance System consists of three diagnostic levels: (1) surveillance midwives, (2) MU-JHU clinical team, and (3) U.S. Centers for Disease Control and Prevention (CDC) birth defects subject matter experts (SMEs) who provide confirmatory diagnosis. The diagnostic concordance of major external BDs by surveillance midwives or MU-JHU clinical team with CDC birth defects SMEs were estimated. METHODS Study staff went through a series of trainings, including birth defects identification and confirmation, before surveillance activities were implemented. To assess the diagnostic concordance, we analyzed surveillance data from 2015 to 2021 for major external BDs: anencephaly, iniencephaly, encephalocele, spina bifida, craniorachischisis, microcephaly, anophthalmia/microphthalmia, anotia/microtia, cleft palate alone, cleft lip alone, cleft lip with cleft palate, imperforate anus, hypospadias, talipes equinovarus, limb reduction, gastroschisis, and omphalocele. Positive predictive value (PPV) as the proportion of BDs diagnosed by surveillance midwives or MU-JHU clinical team that were confirmed by CDC birth defects SMEs was computed. PPVs between 2015 and 2018 and 2019-2021 were compared to assess the accuracy of case diagnosis over time. RESULTS Of the 204,332 infants examined during 2015-2021, 870 infants had a BD. Among the 1,245 BDs identified, 1,232 (99.0%) were confirmed by CDC birth defects SMEs. For surveillance midwives, PPV for 7 of 17 BDs was > 80%. For the MU-JHU clinical team, PPV for 13 of 17 BDs was > 80%. Among surveillance midwives, PPV improved significantly from 2015 to 2018 to 2019-2021, for microcephaly (+ 50.0%), cleft lip with cleft palate (+ 17.0%), imperforate anus (+ 30.0%), and talipes equinovarus (+ 10.8%). Improvements in PPV were also observed among MU-JHU clinical team; however, none were significant. CONCLUSION The diagnostic accuracy of the midwives and clinical team increased, highlighting that BD surveillance, by front-line health care workers (midwives) in LMICs is possible when midwives receive comprehensive training, technical support, funding and continuous professional development.
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Affiliation(s)
- Joyce Namale-Matovu
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda.
| | - Ronald Kusolo
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
| | - Robert Serunjogi
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
| | - Linda Barlow-Mosha
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
| | - Daniel Mumpe-Mwanja
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
| | | | - Dennis Kalibbala
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
| | - Dhelia Williamson
- Division of Global HIV and TB, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Diana Valencia
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | | | | | - Lisa J Nelson
- Division of Global HIV and TB, US CDC, Kampala, Uganda
| | | | - Jennifer L Williams
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Cara T Mai
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Yan Ping Qi
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Philippa Musoke
- Makerere University, Johns Hopkins University Research Collaboration (MU-JHU), P.O. Box 23491, Kampala, Uganda
- Department of Pediatrics, Makerere University College of Health Sciences, Kampala, Uganda
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4
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Rosen JG, Reynolds SJ, Galiwango RM, Kigozi G, Quinn TC, Ratmann O, Ndyanabo A, Nelson LJ, Nakigozi G, Nalugemwa M, Rucinski KB, Kennedy CE, Chang LW, Kagaayi J, Serwadda D, Grabowski MK. A moving target: impacts of lowering viral load suppression cutpoints on progress towards HIV epidemic control goals. AIDS 2023; 37:1486-1489. [PMID: 37395255 PMCID: PMC10328551 DOI: 10.1097/qad.0000000000003593] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Redefining viral load suppression (VLS) using lower cutpoints could impact progress towards the United Nations Programme on HIV/AIDS 95-95-95 targets. We assessed impacts of lowering the VLS cutpoint on achieving the 'third 95' in the Rakai Community Cohort Study. Population VLS would fall from 86% to 84% and 76%, respectively, after lowering VLS cutpoints from <1000 to <200 and <50 copies/ml. The fraction of viremic persons increased by 17% after lowering the VLS cutpoint from <1000 to <200 copies/ml.
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Affiliation(s)
- Joseph G. Rosen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Steven J. Reynolds
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Thomas C. Quinn
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Oliver Ratmann
- Department of Mathematics, Imperial College, London, United Kingdom
| | | | - Lisa J. Nelson
- Centers for Disease Control and Prevention, Kampala, Uganda
| | | | | | - Katherine B. Rucinski
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Caitlin E. Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Rakai Health Sciences Program, Entebbe, Uganda
| | - Larry W. Chang
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | - M. Kate Grabowski
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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5
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Rosen JG, Ssekubugu R, Chang LW, Ssempijja V, Galiwango RM, Ssekasanvu J, Ndyanabo A, Kisakye A, Nakigozi G, Rucinski KB, Patel EU, Kennedy CE, Nalugoda F, Kigozi G, Ratmann O, Nelson LJ, Mills LA, Kabatesi D, Tobian AAR, Quinn TC, Kagaayi J, Reynolds SJ, Grabowski MK. Temporal dynamics and drivers of durable HIV viral load suppression and persistent high- and low-level viremia during Universal Test and Treat scale-up in Uganda: a population-based study. medRxiv 2023:2023.06.15.23291445. [PMID: 37398460 PMCID: PMC10312875 DOI: 10.1101/2023.06.15.23291445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Introduction Population-level data on durable HIV viral load suppression (VLS) following implementation of Universal Test and Treat (UTT) in Africa are limited. We assessed trends in durable VLS and viremia among persons living with HIV in 40 Ugandan communities during UTT scale-up. Methods In 2015-2020, we measured VLS (defined as <200 RNA copies/mL) among participants in the Rakai Community Cohort Study, a longitudinal population-based HIV surveillance cohort in southern Uganda. Persons with unsuppressed viral loads were characterized as having low-level (200-999 copies/mL) or high-level (≥1,000 copies/mL) viremia. Individual virologic outcomes were assessed over two consecutive RCCS survey visits (i.e., visit-pairs; ∼18 month visit intervals) and classified as durable VLS (<200 copies/mL at both visits), new/renewed VLS (<200 copies/mL at follow-up only), viral rebound (<200 copies/mL at initial visit only), or persistent viremia (<200 copies/mL at neither visit). Population prevalence of each outcome was assessed over calendar time. Community-level prevalence and individual-level predictors of persistent high-level viremia were also assessed using multivariable Poisson regression with generalized estimating equations. Results Overall, 3,080 participants contributed 4,604 visit-pairs over three survey rounds. Most visit-pairs (72.4%) exhibited durable VLS, with few (2.5%) experiencing viral rebound. Among those with viremia at the initial visit ( n =1,083), 46.9% maintained viremia through follow-up, 91.3% of which was high-level viremia. One-fifth (20.8%) of visit-pairs exhibiting persistent high-level viremia self-reported antiretroviral therapy (ART) use for ≥12 months. Prevalence of persistent high-level viremia varied substantially across communities and was significantly elevated among young persons aged 15-29 years (versus 40-49-year-olds; adjusted risk ratio [adjRR]=2.96; 95% confidence interval [95%CI]:2.21-3.96), men (versus women; adjRR=2.40, 95%CI:1.87-3.07), persons reporting inconsistent condom use with non-marital/casual partners (versus persons with marital/permanent partners only; adjRR=1.38, 95%CI:1.10-1.74), and persons exhibiting hazardous alcohol use (adjRR=1.09, 95%CI:1.03-1.16). The prevalence of persistent high-level viremia was highest among men <30 years (32.0%). Conclusions Following universal ART provision, most persons living with HIV in south-central Uganda are durably suppressed. Among persons exhibiting viremia, nearly half maintain high-level viremia for ≥12 months and report higher-risk behaviors associated with onward HIV transmission. Enhanced linkage to HIV care and optimized treatment retention could accelerate momentum towards HIV epidemic control.
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Lukoye D, Gustavson G, Namuwenge PM, Muchuro S, Birabwa E, Dejene S, Ssempiira J, Kalamya JN, Baveewo S, Ferroussier-Davis O, Mills LA, Dirlikov E, Nelson LJ, Turyahabwe S. Tuberculosis Preventive Therapy among Persons Living with HIV, Uganda, 2016-2022. Emerg Infect Dis 2023; 29:609-613. [PMID: 36823496 PMCID: PMC9973710 DOI: 10.3201/eid2903.221353] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
During October 2016-March 2022, Uganda increased tuberculosis (TB) preventive therapy coverage among persons living with HIV from 0.6% to 88.8%. TB notification rates increased from 881.1 to 972.5 per 100,000 persons living with HIV. Timely TB screening, diagnosis, and earlier treatment should remain high priorities for TB/HIV prevention programming.
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Ario AR, Aliddeki DM, Kadobera D, Bulage L, Kayiwa J, Wetaka MM, Kyazze S, Ocom F, Makumbi I, Mbaka P, Behumbiize P, Ayebazibwe I, Balinandi SK, Lutwama JJ, Crawley A, Divi N, Lule JR, Ojwang JC, Harris JR, Boore AL, Nelson LJ, Borchert J, Jarvis D. Uganda's experience in establishing an electronic compendium for public health emergencies. PLOS Glob Public Health 2023; 3:e0001402. [PMID: 36962840 PMCID: PMC10021891 DOI: 10.1371/journal.pgph.0001402] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/28/2022] [Indexed: 02/12/2023]
Abstract
Uganda has implemented several interventions that have contributed to prevention, early detection, and effective response to Public Health Emergencies (PHEs). However, there are gaps in collecting and documenting data on the overall response to these PHEs. We set out to establish a comprehensive electronic database of PHEs that occurred in Uganda since 2000. We constituted a core development team, developed a data dictionary, and worked with Health Information Systems Program (HISP)-Uganda to develop and customize a compendium of PHEs using the electronic Integrated Disease Surveillance and Response (eIDSR) module on the District Health Information Software version 2 (DHIS2) platform. We reviewed literature for retrospective data on PHEs for the compendium. Working with the Uganda Public Health Emergency Operations Center (PHEOC), we prospectively updated the compendium with real-time data on reported PHEs. We developed a user's guide to support future data entry teams. An operational compendium was developed within the eIDSR module of the DHIS2 platform. The variables for PHEs data collection include those that identify the type, location, nature and time to response of each PHE. The compendium has been updated with retrospective PHE data and real-time prospective data collection is ongoing. Data within this compendium is being used to generate information that can guide future outbreak response and management. The compendium development highlights the importance of documenting outbreak detection and response data in a central location for future reference. This data provides an opportunity to evaluate and inform improvements in PHEs response.
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Affiliation(s)
- Alex Riolexus Ario
- Uganda Public Health Fellowship Program, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | | | - Daniel Kadobera
- Uganda Public Health Fellowship Program, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Lilian Bulage
- Uganda Public Health Fellowship Program, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Joshua Kayiwa
- Uganda National Institute of Public Health, Kampala, Uganda
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Milton M. Wetaka
- Uganda National Institute of Public Health, Kampala, Uganda
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Simon Kyazze
- Uganda National Institute of Public Health, Kampala, Uganda
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Felix Ocom
- Uganda National Institute of Public Health, Kampala, Uganda
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Issa Makumbi
- Uganda National Institute of Public Health, Kampala, Uganda
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Paul Mbaka
- Uganda National Institute of Public Health, Kampala, Uganda
- Division of Health Information, Ministry of Health, Kampala, Uganda
| | | | | | | | | | - Adam Crawley
- Ending Pandemics, San Francisco, California, United States of America
| | - Nomita Divi
- Ending Pandemics, San Francisco, California, United States of America
| | - John R. Lule
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | | | - Julie R. Harris
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Amy L. Boore
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Lisa J. Nelson
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Jeff Borchert
- Division of Vector-Borne Diseases, National Center for Emerging, Zoonotic, Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado, United States of America
| | - Dennis Jarvis
- Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
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8
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Dirlikov E, Kamoga J, Talisuna SA, Namusobya J, Kasozi DE, Akao J, Birabwa E, Ward JA, Elur B, Shiraishi RW, Corcoran C, Vasireddy V, Nelson R, Nelson LJ, Borgman M, Magongo EN, Kisaakye LN, Katureebe C, Kirungi W, Musinguzi J. Scale-Up of HIV Antiretroviral Therapy and Estimation of Averted Infections and HIV-Related Deaths - Uganda, 2004-2022. MMWR Morb Mortal Wkly Rep 2023; 72:90-94. [PMID: 36701255 PMCID: PMC9925129 DOI: 10.15585/mmwr.mm7204a2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
On January 28, 2003, the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), the largest commitment by any nation to address a single disease in history, was announced.* In April 2004, the first person in the world to receive PEPFAR-supported antiretroviral therapy (ART) was a man aged 34 years in Uganda. Effective ART reduces morbidity and mortality among persons with HIV infection (1) and prevents both mother-to-child transmission (MTCT) (2) and sexual transmission once viral load is suppressed to undetectable levels (<200 viral copies/mL) (3). By September 2022, more than 1.3 million persons with HIV infection in Uganda were receiving PEPFAR-supported ART, an increase of approximately 5,000% from September 2004. As indicators of the ART program's effectiveness, a proxy MTCT rate decreased 77%, from 6.4% in 2010 to 1.5% in 2022, and the viral load suppression rate (<1,000 viral copies/mL) increased 3%, from 91% in 2016 to 94% in September 2022. During 2004-2022, ART scale-up helped avert nearly 500,000 HIV infections, including more than 230,000 infections among HIV-exposed infants, and approximately 600,000 HIV-related deaths. Going forward, efforts will focus on identifying all persons with HIV infection and rapidly linking them to effective ART. PEPFAR remains committed to continued strong partnership with the Government of Uganda, civil society, and other development partners toward sustainable solutions aligned with the Joint United Nations Programme on HIV/AIDS (UNAIDS) fast-track strategy to ending the global AIDS epidemic by 2030† and safeguarding impact achieved in the long term.
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Harris JR, Kadobera D, Kwesiga B, Kabwama SN, Bulage L, Kyobe HB, Kagirita AA, Mwebesa HG, Wanyenze RK, Nelson LJ, Boore AL, Ario AR. Improving the effectiveness of Field Epidemiology Training Programs: characteristics that facilitated effective response to the COVID-19 pandemic in Uganda. BMC Health Serv Res 2022; 22:1532. [PMID: 36526999 PMCID: PMC9756722 DOI: 10.1186/s12913-022-08781-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: 05/24/2022] [Accepted: 10/10/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The global need for well-trained field epidemiologists has been underscored in the last decade in multiple pandemics, the most recent being COVID-19. Field Epidemiology Training Programs (FETPs) are in-service training programs that improve country capacities to respond to public health emergencies across different levels of the health system. Best practices for FETP implementation have been described previously. The Uganda Public Health Fellowship Program (PHFP), or Advanced-FETP in Uganda, is a two-year fellowship in field epidemiology funded by the U.S. Centers for Disease Control and situated in the Uganda National Institute of Public Health (UNIPH). We describe how specific attributes of the Uganda PHFP that are aligned with best practices enabled substantial contributions to the COVID-19 response in Uganda. METHODS We describe the PHFP in Uganda and review examples of how specific program characteristics facilitate integration with Ministry of Health needs and foster a strong response, using COVID-19 pandemic response activities as examples. We describe PHFP activities and outputs before and during the COVID-19 response and offer expert opinions about the impact of the program set-up on these outputs. RESULTS Unlike nearly all other Advanced FETPs in Africa, PHFP is delinked from an academic degree-granting program and enrolls only post-Master's-degree fellows. This enables full-time, uninterrupted commitment of academically-trained fellows to public health response. Uganda's PHFP has strong partner support in country, sufficient technical support from program staff, Ministry of Health (MoH), CDC, and partners, and full-time dedicated directorship from a well-respected MoH staff member. The PHFP is physically co-located inside the UNIPH with the emergency operations center (EOC), which provides a direct path for health alerts to be investigated by fellows. It has recognized value within the MoH, which integrates graduates into key MoH and partner positions. During February 2020-September 2021, PHFP fellows and graduates completed 67 major COVID-related projects. PHFP activities during the COVID-19 response were specifically requested by the MoH or by partners, or generated de novo by the program, and were supervised by all partners. CONCLUSION Specific attributes of the PHFP enable effective service to the Ministry of Health in Uganda. Among the most important is the enrollment of post-graduate fellows, which leads to a high level of utilization of the program fellows by the Ministry of Health to fulfill real-time needs. Strong leadership and sufficient technical support permitted meaningful program outputs during COVID-19 pandemic response. Ensuring the inclusion of similar characteristics when implementing FETPs elsewhere may allow them to achieve a high level of impact.
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Affiliation(s)
- Julie R. Harris
- grid.512457.0Centers for Disease Control and Prevention, Kampala, Uganda
| | - Daniel Kadobera
- Uganda Public Health Fellowship Program, National Institute of Public Health, Kampala, Uganda
| | - Benon Kwesiga
- Uganda Public Health Fellowship Program, National Institute of Public Health, Kampala, Uganda
| | - Steven N. Kabwama
- Uganda Public Health Fellowship Program, National Institute of Public Health, Kampala, Uganda
| | - Lilian Bulage
- Uganda Public Health Fellowship Program, National Institute of Public Health, Kampala, Uganda
| | - Henry B. Kyobe
- grid.4991.50000 0004 1936 8948University of Oxford, Kellogg College, Oxford, UK ,grid.415705.2Ministry of Health, Kampala, Uganda
| | | | | | - Rhoda K. Wanyenze
- grid.11194.3c0000 0004 0620 0548College of Health Sciences, Makerere University School of Public Health, Kampala, Uganda
| | - Lisa J. Nelson
- grid.512457.0Centers for Disease Control and Prevention, Kampala, Uganda
| | - Amy L. Boore
- grid.512457.0Centers for Disease Control and Prevention, Kampala, Uganda
| | - Alex Riolexus Ario
- Uganda Public Health Fellowship Program, National Institute of Public Health, Kampala, Uganda ,grid.415705.2Ministry of Health, Kampala, Uganda
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Bachanas PJ, Chun HM, Mehta N, Aberle‐Grasse J, Parris K, Sherlock MW, Lloyd S, Zeh C, Makwepa DK, Kapanda ML, Dokubo EK, Bonono L, Balachandra S, Ehui E, Fonjungo P, Nkoso AM, Mazibuko S, Okello VN, Tefera F, Getachew M, Katiku EM, Mulwa A, Asiimwe FM, Tarumbiswa TF, Auld AF, Nyirenda R, Dos Santos De Louvado AP, Gaspar I, Hong SY, Ashipala L, Obanubi C, Ikpeazu A, Musoni C, Yoboka E, Mthethwa S, Pinini Z, Bunga S, Rumunu J, Magesa DJ, Mutayoba B, Nelson LJ, Katureebe C, Agolory S, Mulenga LB, Nyika P, Mugurungi O, Ellerbrock T, Mitruka K. Protecting the gains: analysis of HIV treatment and service delivery programme data and interventions implemented in 19 African countries during COVID-19. J Int AIDS Soc 2022; 25:e26033. [PMID: 36419346 PMCID: PMC9684677 DOI: 10.1002/jia2.26033] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 10/20/2022] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The potential disruption in antiretroviral therapy (ART) services in Africa at the start of the COVID-19 pandemic raised concern for increased morbidity and mortality among people living with HIV (PLHIV). We describe HIV treatment trends before and during the pandemic and interventions implemented to mitigate COVID-19 impact among countries supported by the US Centers for Disease Control and Prevention (CDC) through the President's Emergency Plan for AIDS Relief (PEPFAR). METHODS We analysed quantitative and qualitative data reported by 10,387 PEPFAR-CDC-supported ART sites in 19 African countries between October 2019 and March 2021. Trends in PLHIV on ART, new ART initiations and treatment interruptions were assessed. Viral load coverage (testing of eligible PLHIV) and viral suppression were calculated at select time points. Qualitative data were analysed to summarize facility- and community-based interventions implemented to mitigate COVID-19. RESULTS The total number of PLHIV on ART increased quarterly from October 2019 (n = 7,540,592) to March 2021 (n = 8,513,572). The adult population (≥15 years) on ART increased by 14.0% (7,005,959-7,983,793), while the paediatric population (<15 years) on ART declined by 2.6% (333,178-324,441). However, the number of new ART initiations dropped between March 2020 and June 2020 by 23.4% for adults and 26.1% for children, with more rapid recovery in adults than children from September 2020 onwards. Viral load coverage increased slightly from April 2020 to March 2021 (75-78%) and viral load suppression increased from October 2019 to March 2021 (91-94%) among adults and children combined. The most reported interventions included multi-month dispensing (MMD) of ART, community service delivery expansion, and technology and virtual platforms use for client engagement and site-level monitoring. MMD of ≥3 months increased from 52% in October 2019 to 78% of PLHIV ≥ age 15 on ART in March 2021. CONCLUSIONS With an overall increase in the number of people on ART, HIV programmes proved to be resilient, mitigating the impact of COVID-19. However, the decline in the number of children on ART warrants urgent investigation and interventions to prevent further losses experienced during the COVID-19 pandemic and future public health emergencies.
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11
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Kayiwa J, Homsy J, Nelson LJ, Ocom F, Kasule JN, Wetaka MM, Kyazze S, Mwanje W, Kisakye A, Nabunya D, Nyirabakunzi M, Aliddeki DM, Ojwang J, Boore A, Kasozi S, Borchert J, Shoemaker T, Nabatanzi S, Dahlke M, Brown V, Downing R, Makumbi I. Establishing a Public Health Emergency Operations Center in an Outbreak-Prone Country: Lessons Learned in Uganda, January 2014 to December 2021. Health Secur 2022; 20:394-407. [PMID: 35984936 PMCID: PMC10985018 DOI: 10.1089/hs.2022.0048] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Uganda is highly vulnerable to public health emergencies (PHEs) due to its geographic location next to the Congo Basin epidemic hot spot, placement within multiple epidemic belts, high population growth rates, and refugee influx. In view of this, Uganda's Ministry of Health established the Public Health Emergency Operations Center (PHEOC) in September 2013, as a central coordination unit for all PHEs in the country. Uganda followed the World Health Organization's framework to establish the PHEOC, including establishing a steering committee, acquiring legal authority, developing emergency response plans, and developing a concept of operations. The same framework governs the PHEOC's daily activities. Between January 2014 and December 2021, Uganda's PHEOC coordinated response to 271 PHEs, hosted 207 emergency coordination meetings, trained all core staff in public health emergency management principles, participated in 21 simulation exercises, coordinated Uganda's Global Health Security Agenda activities, established 6 subnational PHEOCs, and strengthened the capacity of 7 countries in public health emergency management. In this article, we discuss the following lessons learned: PHEOCs are key in PHE coordination and thus mitigate the associated adverse impacts; although the functions of a PHEOC may be legalized by the existence of a National Institute of Public Health, their establishment may precede formally securing the legal framework; staff may learn public health emergency management principles on the job; involvement of leaders and health partners is crucial to the success of a public health emergency management program; subnational PHEOCs are resourceful in mounting regional responses to PHEs; and service on the PHE Strategic Committee may be voluntary.
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Affiliation(s)
- Joshua Kayiwa
- Joshua Kayiwa, MSc, is a Plans Chief and Information Analyst, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Jaco Homsy
- Jaco Homsy, MD, MPH, is an Associate Clinical Professor, Epidemiology and Biostatistics, Institute for Global Health Sciences, University of California San Francisco School of Medicine, San Francisco, CA
| | - Lisa J Nelson
- Lisa J. Nelson, MD, MPH, MSc, is a Medical Officer and Uganda Country Director, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Felix Ocom
- Felix Ocom, MD, is Deputy Director, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Juliet N Kasule
- Juliet N. Kasule, MSc, is an Early Warning Specialist, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Milton M Wetaka
- Milton M. Wetaka is a Logistics Chief and Laboratory Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Simon Kyazze
- Simon Kyazze, MSc, is an Operations Chief, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Wilbrod Mwanje
- Wilbrod Mwanje, MPH, is an Epidemiologist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Anita Kisakye
- Anita Kisakye, MSc, is a Monitoring and Evaluation Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Dorothy Nabunya
- Dorothy Nabunya is an Administrative Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Margaret Nyirabakunzi
- Margaret Nyirabakunzi is an Administrative Assistant, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Dativa Maria Aliddeki
- Dativa Maria Aliddeki, MSc, is an Epidemiologist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Joseph Ojwang
- Joseph Ojwang, MPH, is an Epidemiologist, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Amy Boore
- Amy Boore, PhD, is Director, Division of Global Health Protection, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Sam Kasozi
- Sam Kasozi is a Systems Developer, Health Information Systems Program Uganda, Kampala, Uganda
| | - Jeff Borchert
- Jeff Borchert, MSc, is a Public Health Advisor, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), US CDC, Fort Collins, CO
| | - Trevor Shoemaker
- Trevor Shoemaker, PhD, is an Epidemiologist, Division of High-Consequence Pathogens and Pathology, NCEZIDUS CDC, Atlanta, GA
| | - Sandra Nabatanzi
- Sandra Nabatanzi, MSc, is an Epidemiologist, Monitoring and Evaluation Technical Support Program, Makerere University School of Public Health, Kampala, Uganda
| | - Melissa Dahlke
- Melissa Dahlke, MSc, is an Epidemiologist, Global Immunization Division, Center for Global Health, US CDC, Atlanta, GA
| | - Vance Brown
- Vance Brown, MA, is a Public Health Advisor, Division of Global Health Protection, NCEZID, US CDC, Atlanta, GA
| | - Robert Downing
- Robert Downing, PhD, is a Laboratory Specialist, Uganda Virus Research Institute, Ministry of Health, Entebbe, Uganda
| | - Issa Makumbi
- Issa Makumbi, MSc, is Director, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
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12
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Ario AR, Makumbi I, Kadobera D, Bulage L, Ocom F, Kwesiga B, Jarvis DF, Nabatanzi S, Homsy J, Banage F, Brown V, Harris JR, Boore AL, Nelson LJ, Binder S, Mwebesa HG, Aceng JR. Uganda National Institute of Public Health: Establishment and Experiences, 2013–2021. Glob Health Sci Pract 2022; 10:GHSP-D-21-00784. [PMID: 36041845 PMCID: PMC9426990 DOI: 10.9745/ghsp-d-21-00784] [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] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 06/14/2022] [Indexed: 11/24/2022]
Abstract
Since 2013, the Uganda National Institute of Public Health (UNIPH) has successfully collaborated with partners and secured donor funding as it works toward legal establishment as an autonomous entity eligible for government funding. Countries in Africa and beyond can learn from the process Uganda undertook to develop the UNIPH. Uganda is an ecological hot spot with porous borders that lies in several infectious disease transmission belts, making it prone to disease outbreaks. To prepare and respond to these public health threats and emergencies in a coordinated manner, Uganda established the Uganda National Institute of Public Health (UNIPH) in 2013. Using a step-by-step process, Uganda’s Ministry of Health (MOH) crafted a strategy with a vision, mission, goal, and strategic objectives, and identified value additions and key enablers for success. A regulatory impact assessment was then conducted to inform the drafting of principles of the bill for legislation on the Institute. Despite not yet attaining legal status, the UNIPH has already achieved faster, smarter, and more efficient and effective prevention, detection, and response to public health emergencies. Successes include a more coordinated multisectoral, disciplined, and organized response to emergencies; appropriate, timely, and complete information receipt and sharing; a functional national lab sample and results transportation network that has enabled detection and confirmation of public health events within 48 hours of alert; appropriate response to a confirmed public health event in 24–48 hours; and real-time surveillance of endemic- and epidemic-prone diseases. In this article, we document success stories, lessons learned, and challenges encountered during the unique staged process used to develop the components of the UNIPH. The creation of an integrated disease control center has proven to yield better collaboration and synergies between different arms of epidemic preparedness and response.
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Affiliation(s)
- Alex Riolexus Ario
- Uganda National Institute of Public Health, Kampala, Uganda.
- Ministry of Health, Kampala, Uganda
| | - Issa Makumbi
- Uganda National Institute of Public Health, Kampala, Uganda
- Ministry of Health, Kampala, Uganda
| | | | - Lilian Bulage
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Felix Ocom
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Benon Kwesiga
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Dennis F Jarvis
- U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sandra Nabatanzi
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Jaco Homsy
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Flora Banage
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Vance Brown
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Julie R Harris
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Amy L Boore
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Lisa J Nelson
- U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Sue Binder
- International Association of National Public Health Institutes, Global Health Institute, Emory University, Atlanta, GA, USA
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Ario AR, Bulage L, Wibabara Y, Muwereza P, Eurien D, Kabwama SN, Kwesiga B, Kadobera D, Turyahabwe S, Musinguzi JB, Wanyenze RK, Nasirumbi PM, Lukoye D, Harris JR, Mills LA, Nelson LJ. Uganda Public Health Fellowship Program's Contributions to the National HIV and TB Programs, 2015–2020. Glob Health Sci Pract 2022; 10:GHSP-D-21-00574. [PMID: 35487554 PMCID: PMC9053155 DOI: 10.9745/ghsp-d-21-00574] [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] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 03/21/2022] [Indexed: 11/15/2022]
Abstract
The Uganda Public Health Fellowship Program has built the capacity of its fellows to address multiple gaps in the Uganda health system as well as to contribute to improving Uganda's ability to prevent, prepare for, and respond to public health emergencies such as HIV and TB. Despite remarkable progress in controlling HIV and TB, Uganda is one of the 30 high-burden TB/HIV countries. Approximately 53,000 Ugandans had a new HIV diagnosis in 2019, and approximately 88,000 Ugandans had a TB diagnosis in 2020. Fellows in the Uganda Public Health Fellowship Program (UPHFP) work directly with the Ministry of Health AIDS and TB Control Programs, the U.S. Centers for Disease Control and Prevention, UPHFP supervisors, and implementing partners to investigate and evaluate HIV-related and TB-related issues. These activities have contributed to the Uganda HIV and TB programs. UPHFP fellows complete projects in 7 competency domains, including outbreak investigations, surveillance evaluations, and data quality improvement. Priority HIV/AIDS/TB information gaps/topics are identified in consultation with key stakeholders, and fellows complete projects to guide program improvements and policy decisions. During 2015–2020, UPHFP fellows implemented 127 HIV and TB projects covering key program areas in AIDS and TB control programs, including care and treatment (16 projects), TB/HIV (18), prevention of mother-to-child HIV transmission (24), key and priority populations (9), pre-exposure and post-exposure prophylaxis (7), adolescent girls and young women (6), service delivery (13), and diagnosis of TB including drug-resistant TB and TB in high-risk groups (32). These projects have helped improve retention, quality of care, and treatment outcomes for people living with HIV, HIV and TB coinfected patients, and TB patients. They have also contributed to the decrease in pediatric TB and infant HIV positivity rates and improved service delivery for key populations. UPHFP results were disseminated to relevant stakeholders such as government departments, implementing partners, districts, and the general community and guided decision making. UPHFP has significantly improved HIV and TB control in Uganda. Other countries with similar programs could benefit from this approach and utilize program fellows to support HIV and TB control.
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Affiliation(s)
- Alex R Ario
- Ministry of Health, Kampala, Uganda.
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Lilian Bulage
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
- African Field Epidemiology Network, Kampala, Uganda
| | - Yvette Wibabara
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Peter Muwereza
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Daniel Eurien
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Steven N Kabwama
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- College of Health Sciences, Makerere University School of Public Health, Kampala, Uganda
| | - Benon Kwesiga
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Daniel Kadobera
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- Uganda National Institute of Public Health, Kampala, Uganda
| | - Stavia Turyahabwe
- Ministry of Health, Kampala, Uganda
- National TB and Leprosy Control Division, Ministry of Health, Kampala, Uganda
| | - Joshua B Musinguzi
- Ministry of Health, Kampala, Uganda
- AIDS Control Programme, Ministry of Health, Kampala, Uganda
| | - Rhoda K Wanyenze
- College of Health Sciences, Makerere University School of Public Health, Kampala, Uganda
| | - Pamela M Nasirumbi
- U.S. Centers for Disease Control and Prevention, Division of Global Health Protection, Centers for Global Health, Kampala, Uganda
| | - Deus Lukoye
- U.S. Centers for Disease Control and Prevention, Division of Global Health Protection, Centers for Global Health, Kampala, Uganda
| | - Julie R Harris
- U.S. Centers for Disease Control and Prevention, Division of Global Health Protection, Centers for Global Health, Kampala, Uganda
| | - Lisa A Mills
- U.S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Centers for Global Health, Kampala, Uganda
| | - Lisa J Nelson
- U.S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Centers for Global Health, Kampala, Uganda
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Harris JR, Owusu D, O'Laughlin K, Cohen AL, Ben Hamida A, Patel JC, Freeman MM, Nsibambi T, Nieves R, Marston BJ, Wasike S, Galbraith JS, Boore AL, Nelson LJ, Guagliardo SAJ, Klena JD, Patel K, Ma M. SARS-CoV-2 Breakthrough Infections among US Embassy Staff Members, Uganda, May-June 2021. Emerg Infect Dis 2022; 28:1279-1280. [PMID: 35470796 PMCID: PMC9155868 DOI: 10.3201/eid2806.220427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The SARS-CoV-2 Delta variant emerged shortly after COVID-19 vaccines became available in 2021. We describe SARS-CoV-2 breakthrough infections in a highly vaccinated, well-monitored US Embassy community in Kampala, Uganda. Defining breakthrough infection rates in highly vaccinated populations can help determine public health messaging, guidance, and policy globally.
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15
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Aceng JR, Ario AR, Muruta AN, Makumbi I, Nanyunja M, Komakech I, Bakainaga AN, Talisuna AO, Mwesigye C, Mpairwe AM, Tusiime JB, Lali WZ, Katushabe E, Ocom F, Kaggwa M, Bongomin B, Kasule H, Mwoga JN, Sensasi B, Mwebembezi E, Katureebe C, Sentumbwe O, Nalwadda R, Mbaka P, Fatunmbi BS, Nakiire L, Lamorde M, Walwema R, Kambugu A, Nanyondo J, Okware S, Ahabwe PB, Nabukenya I, Kayiwa J, Wetaka MM, Kyazze S, Kwesiga B, Kadobera D, Bulage L, Nanziri C, Monje F, Aliddeki DM, Ntono V, Gonahasa D, Nabatanzi S, Nsereko G, Nakinsige A, Mabumba E, Lubwama B, Sekamatte M, Kibuule M, Muwanguzi D, Amone J, Upenytho GD, Driwale A, Seru M, Sebisubi F, Akello H, Kabanda R, Mutengeki DK, Bakyaita T, Serwanjja VN, Okwi R, Okiria J, Ainebyoona E, Opar BT, Mimbe D, Kyabaggu D, Ayebazibwe C, Sentumbwe J, Mwanja M, Ndumu DB, Bwogi J, Balinandi S, Nyakarahuka L, Tumusiime A, Kyondo J, Mulei S, Lutwama J, Kaleebu P, Kagirita A, Nabadda S, Oumo P, Lukwago R, Kasozi J, Masylukov O, Kyobe HB, Berdaga V, Lwanga M, Opio JC, Matseketse D, Eyul J, Oteba MO, Bukirwa H, Bulya N, Masiira B, Kihembo C, Ohuabunwo C, Antara SN, Owembabazi W, Okot PB, Okwera J, Amoros I, Kajja V, Mukunda BS, Sorela I, Adams G, Shoemaker T, Klena JD, Taboy CH, Ward SE, Merrill RD, Carter RJ, Harris JR, Banage F, Nsibambi T, Ojwang J, Kasule JN, Stowell DF, Brown VR, Zhu BP, Homsy J, Nelson LJ, Tusiime PK, Olaro C, Mwebesa HG, Woldemariam YT. Uganda's experience in Ebola virus disease outbreak preparedness, 2018-2019. Global Health 2020; 16:24. [PMID: 32192540 PMCID: PMC7081536 DOI: 10.1186/s12992-020-00548-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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: 07/12/2019] [Accepted: 02/12/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Since the declaration of the 10th Ebola Virus Disease (EVD) outbreak in DRC on 1st Aug 2018, several neighboring countries have been developing and implementing preparedness efforts to prevent EVD cross-border transmission to enable timely detection, investigation, and response in the event of a confirmed EVD outbreak in the country. We describe Uganda's experience in EVD preparedness. RESULTS On 4 August 2018, the Uganda Ministry of Health (MoH) activated the Public Health Emergency Operations Centre (PHEOC) and the National Task Force (NTF) for public health emergencies to plan, guide, and coordinate EVD preparedness in the country. The NTF selected an Incident Management Team (IMT), constituting a National Rapid Response Team (NRRT) that supported activation of the District Task Forces (DTFs) and District Rapid Response Teams (DRRTs) that jointly assessed levels of preparedness in 30 designated high-risk districts representing category 1 (20 districts) and category 2 (10 districts). The MoH, with technical guidance from the World Health Organisation (WHO), led EVD preparedness activities and worked together with other ministries and partner organisations to enhance community-based surveillance systems, develop and disseminate risk communication messages, engage communities, reinforce EVD screening and infection prevention measures at Points of Entry (PoEs) and in high-risk health facilities, construct and equip EVD isolation and treatment units, and establish coordination and procurement mechanisms. CONCLUSION As of 31 May 2019, there was no confirmed case of EVD as Uganda has continued to make significant and verifiable progress in EVD preparedness. There is a need to sustain these efforts, not only in EVD preparedness but also across the entire spectrum of a multi-hazard framework. These efforts strengthen country capacity and compel the country to avail resources for preparedness and management of incidents at the source while effectively cutting costs of using a "fire-fighting" approach during public health emergencies.
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Affiliation(s)
| | - Alex R Ario
- Ministry of Health, Kampala, Uganda.
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda.
| | | | - Issa Makumbi
- Ministry of Health, Kampala, Uganda
- Public Health Emergency Operations Centre, Ministry of Health, Kampala, Uganda
| | | | | | | | | | | | | | | | - William Z Lali
- World Health Organisation, Country Office, Kampala, Uganda
| | | | - Felix Ocom
- World Health Organisation, Country Office, Kampala, Uganda
| | - Mugagga Kaggwa
- World Health Organisation, Country Office, Kampala, Uganda
| | - Bodo Bongomin
- World Health Organisation, Country Office, Kampala, Uganda
| | - Hafisa Kasule
- World Health Organisation, Country Office, Kampala, Uganda
| | - Joseph N Mwoga
- World Health Organisation, Country Office, Kampala, Uganda
| | | | | | | | | | - Rita Nalwadda
- World Health Organisation, Country Office, Kampala, Uganda
| | - Paul Mbaka
- World Health Organisation, Country Office, Kampala, Uganda
| | | | | | | | | | | | | | - Solome Okware
- Ministry of Health, Kampala, Uganda
- Infectious Disease Institute, Kampala, Uganda
| | | | - Immaculate Nabukenya
- Ministry of Health, Kampala, Uganda
- Infectious Disease Institute, Kampala, Uganda
| | - Joshua Kayiwa
- Public Health Emergency Operations Centre, Ministry of Health, Kampala, Uganda
| | - Milton M Wetaka
- Public Health Emergency Operations Centre, Ministry of Health, Kampala, Uganda
| | - Simon Kyazze
- Public Health Emergency Operations Centre, Ministry of Health, Kampala, Uganda
| | - Benon Kwesiga
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Daniel Kadobera
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Lilian Bulage
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
- African Field Epidemiology Network, Kampala, Uganda
| | - Carol Nanziri
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Fred Monje
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Dativa M Aliddeki
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Vivian Ntono
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Doreen Gonahasa
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Sandra Nabatanzi
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | - Godfrey Nsereko
- Uganda Public Health Fellowship Program, Ministry of Health, Kampala, Uganda
| | | | | | | | | | | | | | | | | | | | | | | | - Harriet Akello
- Ministry of Health, Kampala, Uganda
- Management Sciences for Health, Kampala, Uganda
| | | | | | | | | | | | | | | | | | - Derrick Mimbe
- Makerere University Walter Reed Project, Kampala, Uganda
| | - Denis Kyabaggu
- East African Public Health Laboratory Network, Kampala, Uganda
| | | | - Juliet Sentumbwe
- Ministry of Agriculture, Animal Industry and Fisheries, Entebbe, Uganda
| | - Moses Mwanja
- Ministry of Agriculture, Animal Industry and Fisheries, Entebbe, Uganda
| | - Deo B Ndumu
- Ministry of Agriculture, Animal Industry and Fisheries, Entebbe, Uganda
| | | | | | | | | | | | - Sophia Mulei
- Uganda Virus Research Institute, Entebbe, Uganda
| | | | | | - Atek Kagirita
- Uganda National Health Laboratory Services, Ministry of Health, Kampala, Uganda
| | - Susan Nabadda
- Uganda National Health Laboratory Services, Ministry of Health, Kampala, Uganda
| | - Peter Oumo
- Ministry of Internal Affairs, Uganda Police Force, Kampala, Uganda
| | - Robinah Lukwago
- Department for International Development, UKAID, Kampala, Uganda
| | - Julius Kasozi
- United Nations High Commissioner for Refugees, Kampala, Uganda
| | | | | | | | | | - Joe C Opio
- United Nations Children's Fund, Kampala, Uganda
| | | | - James Eyul
- Civil Aviation Authority, Entebbe, Uganda
| | | | | | - Nulu Bulya
- African Field Epidemiology Network, Kampala, Uganda
| | - Ben Masiira
- African Field Epidemiology Network, Kampala, Uganda
| | | | | | | | | | | | | | | | - Victoria Kajja
- Intenational Organisation for Migration, Kampala, Uganda
| | | | - Isabel Sorela
- Intenational Organisation for Migration, Kampala, Uganda
| | - Gregory Adams
- United States Agency for International Development, Kampala, Uganda
| | - Trevor Shoemaker
- National Center for Emerging and Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - John D Klena
- National Center for Emerging and Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Celine H Taboy
- National Center for Emerging and Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sarah E Ward
- Division of Global Migration and Quarantine, Global Border Health, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Rebecca D Merrill
- Division of Global Migration and Quarantine, Global Border Health, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Rosalind J Carter
- Global Immunization Division, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Julie R Harris
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Flora Banage
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Thomas Nsibambi
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Joseph Ojwang
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Juliet N Kasule
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Dan F Stowell
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Vance R Brown
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Bao-Ping Zhu
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Jaco Homsy
- US Centers for Disease Control and Prevention, Kampala, Uganda
| | - Lisa J Nelson
- US Centers for Disease Control and Prevention, Kampala, Uganda
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Biedron C, Lyman M, Stuckey MJ, Homsy J, Lamorde M, Luvsansharav UO, Wilson K, Gomes D, Omuut W, Okware S, Semanda JN, Kiggundu R, Bulwadda D, Brown V, Nelson LJ, Driwale A, Fagan R, Park BJ, Smith RM. Evaluation of Infection Prevention and Control Readiness at Frontline Health Care Facilities in High-Risk Districts Bordering Ebola Virus Disease-Affected Areas in the Democratic Republic of the Congo - Uganda, 2018. MMWR Morb Mortal Wkly Rep 2019; 68:851-854. [PMID: 31581162 PMCID: PMC6776373 DOI: 10.15585/mmwr.mm6839a4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Infection prevention and control (IPC) in health care facilities is essential to protecting patients, visitors, and health care personnel from the spread of infectious diseases, including Ebola virus disease (Ebola). Patients with suspected Ebola are typically referred to specialized Ebola treatment units (ETUs), which have strict isolation and IPC protocols, for testing and treatment (1,2). However, in settings where contact tracing is inadequate, Ebola patients might first seek care at general health care facilities, which often have insufficient IPC capacity (3-6). Before 2014-2016, most Ebola outbreaks occurred in rural or nonurban communities, and the role of health care facilities as amplification points, while recognized, was limited (7,8). In contrast to these earlier outbreaks, the 2014-2016 West Africa Ebola outbreak occurred in densely populated urban areas where access to health care facilities was better, but contact tracing was generally inadequate (8). Patients with unrecognized Ebola who sought care at health care facilities with inadequate IPC initiated multiple chains of transmission, which amplified the epidemic to an extent not seen in previous Ebola outbreaks (3-5,7). Implementation of robust IPC practices in general health care facilities was critical to ending health care-associated transmission (8). In August 2018, when an Ebola outbreak was recognized in the Democratic Republic of the Congo (DRC), neighboring countries began preparing for possible introduction of Ebola, with a focus on IPC. Baseline IPC assessments conducted in frontline health care facilities in high-risk districts in Uganda found IPC gaps in screening, isolation, and notification. Based on findings, additional funds were provided for IPC, a training curriculum was developed, and other corrective actions were taken. Ebola preparedness efforts should include activities to ensure that frontline health care facilities have the IPC capacity to rapidly identify suspected Ebola cases and refer such patients for treatment to protect patients, staff members, and visitors.
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Serbanescu F, Clark TA, Goodwin MM, Nelson LJ, Boyd MA, Kekitiinwa AR, Kaharuza F, Picho B, Morof D, Blanton C, Mumba M, Komakech P, Carlosama F, Schmitz MM, Conlon CM. Impact of the Saving Mothers, Giving Life Approach on Decreasing Maternal and Perinatal Deaths in Uganda and Zambia. Glob Health Sci Pract 2019; 7:S27-S47. [PMID: 30867208 PMCID: PMC6519676 DOI: 10.9745/ghsp-d-18-00428] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/28/2019] [Indexed: 01/09/2023]
Abstract
Through district system strengthening, integrated services, and community engagement interventions, the Saving Mothers, Giving Life initiative increased emergency obstetric care coverage and access to, and demand for, improved quality of care that led to rapid declines in district maternal and perinatal mortality. Significant reductions in intrapartum stillbirth rate and maternal mortality ratios around the time of birth attest to the success of the initiative. Background: Maternal and perinatal mortality is a global development priority that continues to present major challenges in sub-Saharan Africa. Saving Mothers, Giving Life (SMGL) was a multipartner initiative implemented from 2012 to 2017 with the goal of improving maternal and perinatal health in high-mortality settings. The initiative accomplished this by reducing delays to timely and appropriate obstetric care through the introduction and support of community and facility evidence-based and district-wide health systems strengthening interventions. Methods: SMGL-designated pilot districts in Uganda and Zambia documented baseline and endline maternal and perinatal health outcomes using multiple approaches. These included health facility assessments, pregnancy outcome monitoring, enhanced maternal mortality detection in facilities, and district population-based identification and investigation of maternal deaths in communities. Results: Over the course of the 5-year SMGL initiative, population-based estimates documented a 44% reduction in the SMGL-supported district-wide maternal mortality ratio (MMR) in Uganda (from 452 to 255 maternal deaths per 100,000 live births) and a 41% reduction in Zambia (from 480 to 284 maternal deaths per 100,000 live births). The MMR in SMGL-supported health facilities declined by 44% in Uganda and by 38% in Zambia. The institutional delivery rate increased by 47% in Uganda (from 45.5% to 66.8% of district births) and by 44% in Zambia (from 62.6% to 90.2% of district births). The number of facilities providing emergency obstetric and newborn care (EmONC) rose from 10 to 26 in Uganda and from 7 to 13 in Zambia, and lower- and mid-level facilities increased the number of EmONC signal functions performed. Cesarean delivery rates increased by more than 70% in both countries, reaching 9% and 5% of all births in Uganda and Zambia districts, respectively. Maternal deaths in facilities due to obstetric hemorrhage declined by 42% in Uganda and 65% in Zambia. Overall, perinatal mortality rates declined, largely due to reductions in stillbirths in both countries; however, no statistically significant changes were found in predischarge neonatal death rates in predischarge either country. Conclusions: MMRs fell significantly in Uganda and Zambia following the introduction of the SMGL interventions, and SMGL's comprehensive district systems-strengthening approach successfully improved coverage and quality of care for mothers and newborns. The lessons learned from the initiative can inform policy makers and program managers in other low- and middle-income settings where similar approaches could be used to rapidly reduce preventable maternal and newborn deaths.
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Affiliation(s)
- Florina Serbanescu
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Thomas A Clark
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Mary M Goodwin
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Lisa J Nelson
- Division of Global HIV and TB, U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Mary Adetinuke Boyd
- Division of Global HIV and TB, U.S. Centers for Disease Control and Prevention, Lusaka, Zambia
| | | | - Frank Kaharuza
- HIV Health Office, U.S. Agency for International Development, Kampala, Uganda
| | - Brenda Picho
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Diane Morof
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA.,U.S. Public Health Service Commissioned Corps, Rockville, MD, USA
| | - Curtis Blanton
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Maybin Mumba
- Division of Global HIV and TB, U.S. Centers for Disease Control and Prevention, Lusaka, Zambia
| | - Patrick Komakech
- Division of Global HIV and TB, U.S. Centers for Disease Control and Prevention, Kampala, Uganda
| | - Fernando Carlosama
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Michelle M Schmitz
- Division of Reproductive Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
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Kanagasabai U, Chevalier MS, Drammeh B, Mili FD, Qualls ML, Bock N, Benech I, Nelson LJ, Alemnji G, Watts DH, Kimani D, Selenic D. Trends and Gaps in National Blood Transfusion Services - 14 Sub-Saharan African Countries, 2014-2016. MMWR Morb Mortal Wkly Rep 2018; 67:1392-1396. [PMID: 30571674 PMCID: PMC6342551 DOI: 10.15585/mmwr.mm6750a4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Ensuring availability of safe blood products through recruitment of voluntary, nonremunerated, blood donors (VNRDs) and prevention of transfusion-transmissible infections (TTIs), including human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), and syphilis, is important for public health (1,2). During 2004-2016, the U.S. President's Emergency Plan for AIDS Relief (PEPFAR) provided approximately $468 million in financial support and technical assistance* to 14 sub-Saharan African countries† with high HIV prevalence to strengthen national blood transfusion services (NBTSs)§ and improve blood safety and availability. CDC analyzed these countries' 2014-2016 blood safety surveillance data to update previous reports (1,2) and summarize achievements and programmatic gaps as some NBTSs begin to transition funding and technical support from PEPFAR to local ministries of health (MOHs) (2,3). Despite a 60% increase in blood supply since 2004 and steady declines in HIV prevalence (to <1% among blood donors in seven of the 14 countries), HIV prevalence among blood donors still remains higher than that recommended by the World Health Organization (WHO) (4). PEPFAR support has contributed to significant reductions in HIV prevalence among blood donors in the majority of PEPFAR-supported countries, and linking donors who screen HIV-positive to confirmatory testing and indicated treatment, as well as further reducing TTIs, remains a public health priority (5).
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Dehne KL, Dallabetta G, Wilson D, Garnett GP, Laga M, Benomar E, Fakoya A, Baggaley RC, Nelson LJ, Kasedde S, Bermejo A, Warren M, Benedikt C. HIV Prevention 2020: a framework for delivery and a call for action. Lancet HIV 2017; 3:e323-32. [PMID: 27365207 DOI: 10.1016/s2352-3018(16)30035-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/20/2016] [Accepted: 05/03/2016] [Indexed: 12/19/2022]
Abstract
Although effective programmes are available and several countries have seen substantial declines in new HIV infections, progress in the reduction of adult HIV incidence has been slower than expected worldwide and many countries have not had large decreases in new infections in adults despite large reductions in paediatric infections. Reasons for slow progress include inadequate commitment, investment, focus, scale, and quality of implementation of prevention and treatment interventions. The UNAIDS-Lancet Commission on Defeating AIDS-Advancing Global Health reported that the provision of large-scale, effective HIV prevention programmes has failed and called on stakeholders to "get serious about HIV prevention". An ambitious worldwide target has been set by UNAIDS to reduce new infections below 500 000 by 2020-a 75% reduction from 2010. Models show that such a reduction requires a combination of primary prevention interventions and preventative effects of treatment. Achievement of the target will require more effective delivery of HIV prevention for sufficient coverage in populations at greatest risk of infection ensuring that interventions that have proved effective are made available, barriers to their uptake are overcome, demand is created, and use is consistent and occurs at the right scale with high coverage. This paper discusses how programmatic targets for prevention in a worldwide plan could be used to re-energise the HIV prevention approach. A management framework is proposed outlining global, regional, national, and subnational actions and is summarised in a call for action on HIV prevention for 2020.
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Affiliation(s)
| | | | | | | | - Marie Laga
- Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Ade Fakoya
- The Global Fund for AIDS, Tuberculosis and Malaria, Geneva, Switzerland
| | | | - Lisa J Nelson
- Office of the Global AIDS Coordinator, Department of State, Washington, DC, USA
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Thompson JM, Nguyen QH, Singh M, Pavesic MW, Nesterenko I, Nelson LJ, Liao AC, Razorenova OV. Rho-associated kinase 1 inhibition is synthetically lethal with von Hippel-Lindau deficiency in clear cell renal cell carcinoma. Oncogene 2016; 36:1080-1089. [PMID: 27841867 PMCID: PMC5323317 DOI: 10.1038/onc.2016.272] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 01/05/2016] [Revised: 06/06/2016] [Accepted: 06/20/2016] [Indexed: 12/18/2022]
Abstract
Clear Cell Renal Cell Carcinoma (CC-RCC) is the most lethal of all genitourinary cancers. The functional loss of the von Hippel-Lindau (VHL) gene occurs in 90% of CC-RCC, driving cancer progression. The objective of this study was to identify chemical compounds that are synthetically lethal with VHL deficiency in CC-RCC. An annotated chemical library, the Library of Pharmacologically Active Compounds (LOPAC), was screened in parallel on VHL-deficient RCC4 cells and RCC4VHL cells with re-introduced VHL cDNA. The ROCK inhibitor, Y-27632, was identified and validated for selective targeting of VHL-deficient CC-RCC in multiple genetic backgrounds by clonogenic assays. Downregulation of ROCK1 by siRNA selectively reduced the colony forming ability of VHL-deficient CC-RCC, thus mimicking the effect of Y-27632 treatment, whereas downregulation of ROCK2 had no effect. In addition, two other ROCK inhibitors, RKI 1447 and GSK 429286, selectively targeted VHL-deficient CC-RCC. CC-RCC treatment with ROCK inhibitors is cytotoxic and cytostatic based on BrdU assay, Propidium Iodide (PI) staining, and growth curves; and blocks cell migration based on transwell assay. Importantly, knockdown of Hypoxia Inducible Factor (HIF) β in the VHL-deficient CC-RCC had a protective effect against Y-27632 treatment, mimicking VHL reintroduction. On the other hand, CC-RCCVHL cells were sensitized to Y-27632 treatment in hypoxia (2% O2). These results suggest that synthetic lethality between ROCK inhibition and VHL deficiency is dependent on HIF activation. Moreover, HIF1α or HIF2α overexpression in CC-RCCVHL cells is sufficient to sensitize them to ROCK inhibition. Finally, Y-27632 treatment inhibited growth of subcutaneous 786-OT1 CC-RCC tumors in mice. Thus, ROCK inhibitors represent potential therapeutics for VHL-deficient CC-RCC.
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Affiliation(s)
- J M Thompson
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - Q H Nguyen
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - M Singh
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - M W Pavesic
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - I Nesterenko
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - L J Nelson
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - A C Liao
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - O V Razorenova
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
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Nelson LJ, Miller PK, Ashman D. 'Dale': an interpretative phenomenological analysis of a service user's experience with a crisis resolution/home treatment team in the United Kingdom. J Psychiatr Ment Health Nurs 2016; 23:438-48. [PMID: 27593203 DOI: 10.1111/jpm.12328] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/28/2016] [Indexed: 11/30/2022]
Abstract
UNLABELLED WHAT IS KNOWN ABOUT THE SUBJECT?: This paper describes crisis resolution/home treatment (CRHT) teams, which are part of mental health services in the United Kingdom. CRHT is expected to assist individuals in building resilience and work within a recovery approach. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: This paper arises from an interview with one individual, Dale, as part of a larger study exploring service users' experiences of CRHT. It adds to the body of narrative knowledge in CRHT through Dale's co-authorship of this paper, reflecting on his original interview 4 years later, with co-authors providing critical interpretation of his experience, in turn supported by cognate literature. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Implications for practice are considered, themselves mediated through Dale's own descriptions of how CRHT interventions impacted upon him. These impacts are analysed with respect to three themes: Resilience, Recovery and Power. It is centrally contended that clinicians need to more clearly comprehend three core matters. First, what resilience 'is' for service users as well as the complex process through which these individuals move in developing resilience. Second, the distinction that service users might make between 'recovery' and 'functionality', and how this in turn can impact on individuals both in personal and socioeconomic sense. Finally, the mechanics of power within CRHT contexts and how these interpersonal dynamics can affect the relationship between service user and clinician in practice. ABSTRACT Introduction and Aim The central purpose of this paper, part of a larger study exploring the experiences of Service Users (SUs) with CRHT, is to emphasise the importance of the SU voice itself within the domain. Following an interrogation of the historical contexts of CRHT. Method This paper uses interpretative phenomological approach around detailed thematic examination of an extended, semi-structured with a single SU: Dale. Moreover, four years after the interview was originally conducted, Dale was himself invited to reflect upon, and critically re-evaluate, his initial participation as a co-author of this paper. In this way, a genuinely participant-centred narrative on experiences with CRHT could be generated. Implications for Practice This resulted in Dale describing what 'crisis' meant to him, and his personal journey within that crisis. Although framing some experiences as negative, he primarily argues that the CRHT team was very personable, affirming his personal values and beliefs, and encouraging him to use coping skills that he had utilised effectively in prior periods of crisis. Analysis highlights three major themes permeating Dale's narrative: Resilience, Recovery and Power. It is contended that this analysis begins to demonstrate implications for practice and highlight that (and how) CRHT clinicians might more clearly engage with what resilience 'is' for SUs, and also the complex process through which these individuals move in developing it. Equally, it is proposed that practitioners should be mindful of the distinction that SUs might make between 'recovery' and 'functionality', and how this in turn can impact on individuals both in personal and socio-economic sense. Finally, the mechanics of power within CRHT contexts are foregrounded, and how these interpersonal dynamics can affect the working relationship between SU and clinician.
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Affiliation(s)
- L J Nelson
- Department of Nursing, Health and Professional Practice, University of Cumbria, Carlisle, UK
| | - P K Miller
- Department of Medical and Sports Sciences, University of Cumbria, Lancaster, UK
| | - D Ashman
- Department of Nursing, Health and Professional Practice, University of Cumbria, Carlisle, UK
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Wright HJ, Arulmoli J, Motazedi M, Nelson LJ, Heinemann FS, Flanagan LA, Razorenova OV. CDCP1 cleavage is necessary for homodimerization-induced migration of triple-negative breast cancer. Oncogene 2016; 35:4762-72. [PMID: 26876198 DOI: 10.1038/onc.2016.7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 12/18/2015] [Accepted: 12/21/2015] [Indexed: 01/17/2023]
Abstract
Triple-negative breast cancer (TNBC) is a highly aggressive and metastatic form of breast cancer that lacks the estrogen, progesterone and HER2 receptors and is resistant to targeted and hormone therapies. TNBCs express high levels of the transmembrane glycoprotein, complement C1r/C1s, Uegf, Bmp1 (CUB)-domain containing protein 1 (CDCP1), which has been correlated with the aggressiveness and poor prognosis of multiple carcinomas. Full-length CDCP1 (flCDCP1) can be proteolytically cleaved, resulting in a cleaved membrane-bound isoform (cCDCP1). CDCP1 is phosphorylated by Src family kinases in its full-length and cleaved states, which is important for its pro-metastatic signaling. We observed that cCDCP1, compared with flCDCP1, induced a dramatic increase in phosphorylation of the migration-associated proteins: PKCδ, ERK1/2 and p38 mitogen-activated protein kinase in HEK 293T. In addition, only cCDCP1 induced migration of HEK 293T cells and rescued migration of the TNBC cell lines expressing short hairpin RNA against CDCP1. Importantly, we found that only cCDCP1 is capable of dimerization, which can be blocked by expression of the extracellular portion of cCDCP1 (ECC), indicating that dimerization occurs through CDCP1's ectodomain. We found that ECC inhibited phosphorylation of PKCδ and migration of TNBC cells in two-dimensional culture. Furthermore, ECC decreased cell invasiveness, inhibited proliferation and stimulated apoptosis of TNBC cells in three-dimensional culture, indicating that the cCDCP1 dimer is an important contributor to TNBC aggressiveness. These studies have important implications for the development of a therapeutic to block CDCP1 activity and TNBC metastasis.
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Affiliation(s)
- H J Wright
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - J Arulmoli
- Department of Biomedical Engineering, University of California, Irvine, CA, USA
| | - M Motazedi
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - L J Nelson
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - F S Heinemann
- Department of Pathology, Hoag Memorial Hospital Presbyterian, Newport Beach, CA, USA
| | - L A Flanagan
- Department of Biomedical Engineering, University of California, Irvine, CA, USA.,Department of Neurology, University of California, Irvine, CA, USA
| | - O V Razorenova
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
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Auld AF, Mbofana F, Shiraishi RW, Alfredo C, Sanchez M, Ellerbrock TV, Nelson LJ. Incidence and determinants of tuberculosis among adults initiating antiretroviral therapy--Mozambique, 2004-2008. PLoS One 2013; 8:e54665. [PMID: 23349948 PMCID: PMC3551849 DOI: 10.1371/journal.pone.0054665] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [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: 07/08/2012] [Accepted: 12/17/2012] [Indexed: 12/05/2022] Open
Abstract
Background In Mozambique, tuberculosis (TB) is thought to be the most common cause of death among antiretroviral therapy (ART) enrollees. Monitoring proportions of enrollees screened for TB, and incidence and determinants of TB during ART can help clinicians and program managers identify program improvement opportunities. Methodology/Principal Findings We conducted a retrospective cohort study among a nationally representative sample of the 79,500 adults (>14 years old) initiating ART during 2004–2007 to estimate clinician compliance with TB screening guidelines, factors associated with active TB at ART initiation, and incidence and predictors of documented TB during ART follow-up. Of 94 sites enrolling >50 adults on ART, 30 were selected using probability-proportional-to-size sampling; 2,596 medical records at these sites were randomly selected for abstraction and analysis. At ART initiation, median age of patients was 34, 62% were female, median baseline CD4+ T-cell count was 153/µL, and 11% were taking TB treatment. Proportions of records with TB screening documentation before ART initiation improved from 31% to 66% during 2004–2007 (p<0.001). TB screening compliance varied widely by ART clinic [n = 30, 2%–98% (p<0.001)] and supporting non-Governmental Organization (NGO) [n = 7, 27%–83% (p<0.001)]. Receiving TB treatment at ART enrollment was associated with male sex (p<0.001), weight <45 kg (p<0.001) and CD4<50/µL (p = 0.001). Isoniazid preventive therapy (IPT) was prescribed to <1% of ART enrollees not taking TB treatment. TB incidence during ART was 2.32 cases per 100 person-years. Factors associated with TB incidence included adherence to ART <95% (AHR 2.06; 95% CI, 1.32–3.21). Conclusion Variations in TB screening by clinic and NGO may reflect differing investments in TB screening activities. Future scale-up should target under-performing clinics. Scale-up of TB screening at ART initiation, IPT, and ART adherence interventions could significantly reduce incident TB during ART.
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Affiliation(s)
- Andrew F Auld
- Division of Global HIV/AIDS (DGHA), Center for Global Health (CGH), Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Auld AF, Mbofana F, Shiraishi RW, Sanchez M, Alfredo C, Nelson LJ, Ellerbrock T. Four-year treatment outcomes of adult patients enrolled in Mozambique's rapidly expanding antiretroviral therapy program. PLoS One 2011; 6:e18453. [PMID: 21483703 PMCID: PMC3070740 DOI: 10.1371/journal.pone.0018453] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 03/08/2011] [Indexed: 11/18/2022] Open
Abstract
Background In Mozambique during 2004–2007 numbers of adult patients (≥15 years
old) enrolled on antiretroviral therapy (ART) increased about 16-fold, from
<5,000 to 79,500. All ART patients were eligible for co-trimoxazole. ART
program outcomes, and determinants of outcomes, have not yet been
reported. Methodology/Principal Findings In a retrospective cohort study, we investigated rates of mortality,
attrition (death, loss to follow-up, or treatment cessation), immunologic
treatment failure, and regimen-switch, as well as determinants of selected
outcomes, among a nationally representative sample of 2,596 adults
initiating ART during 2004–2007. At ART initiation, median age of
patients was 34 and 62% were female. Malnutrition and advanced
disease were common; 18% of patients weighed <45 kilograms, and
15% were WHO stage IV. Median baseline CD4+ T-cell
count was 153/µL and was lower for males than females (139/µL
vs. 159/µL, p<0.01). Stavudine, lamivudine, and nevirapine or
efavirenz were prescribed to 88% of patients; only 31% were
prescribed co-trimoxazole. Mortality and attrition rates were 3.4 deaths and
19.8 attritions per 100 patient-years overall, and 12.9 deaths and 57.2
attritions per 100 patient-years in the first 90 days. Predictors of
attrition included male sex [adjusted hazard ratio (AHR) 1.5;
95% confidence interval (CI), 1.3–1.8], weight <45 kg
(AHR 2.1; 95% CI, 1.6–2.9, reference group >60 kg), WHO
stage IV (AHR 1.7; 95% CI, 1.3–2.4, reference group WHO stage
I/II), lack of co-trimoxazole prescription (AHR 1.4; 95% CI,
1.0–1.8), and later calendar year of ART initiation (AHR 1.5;
95% CI, 1.2–1.8). Rates of immunologic treatment failure and
regimen-switch were 14.0 and 0.6 events per 100-patient years,
respectively. Conclusions ART initiation at earlier disease stages and scale-up of co-trimoxazole among
ART patients could improve outcomes. Research to determine reasons for low
regimen-switch rates and increasing rates of attrition during program
expansion is needed.
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Affiliation(s)
- Andrew F Auld
- Division of Global AIDS, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America.
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Brentlinger PE, Assan A, Mudender F, Ghee AE, Vallejo Torres J, Martínez Martínez P, Bacon O, Bastos R, Manuel R, Ramirez Li L, McKinney C, Nelson LJ. Task shifting in Mozambique: cross-sectional evaluation of non-physician clinicians' performance in HIV/AIDS care. Hum Resour Health 2010; 8:23. [PMID: 20939909 PMCID: PMC2994547 DOI: 10.1186/1478-4491-8-23] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Accepted: 10/12/2010] [Indexed: 05/10/2023]
Abstract
BACKGROUND Many resource-constrained countries now train non-physician clinicians in HIV/AIDS care, a strategy known as 'task-shifting.' There is as yet no evidence-based international standard for training these cadres. In 2007, the Mozambican Ministry of Health (MOH) conducted a nationwide evaluation of the quality of care delivered by non-physician clinicians (técnicos de medicina, or TMs), after a two-week in-service training course emphasizing antiretroviral therapy (ART). METHODS Forty-four randomly selected TMs were directly observed by expert clinicians as they cared for HIV-infected patients in their usual worksites. Observed clinical performance was compared to national norms as taught in the course. RESULTS In 127 directly observed patient encounters, TMs assigned the correct WHO clinical stage in 37.6%, and correctly managed co-trimoxazole prophylaxis in 71.6% and ART in 75.5% (adjusted estimates). Correct management of all 5 main aspects of patient care (staging, co-trimoxazole, ART, opportunistic infections, and adverse drug reactions) was observed in 10.6% of encounters.The observed clinical errors were heterogeneous. Common errors included assignment of clinical stage before completing the relevant patient evaluation, and initiation or continuation of co-trimoxazole or ART without indications or when contraindicated. CONCLUSIONS In Mozambique, the in-service ART training was suspended. MOH subsequently revised the TMs' scope of work in HIV/AIDS care, defined new clinical guidelines, and initiated a nationwide re-training and clinical mentoring program for these health professionals. Further research is required to define clinically effective methods of health-worker training to support HIV/AIDS care in Mozambique and similarly resource-constrained environments.
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Affiliation(s)
- Paula E Brentlinger
- International Training and Education Center on HIV, Department of Global Health, School of Public Health , University of Washington, Seattle, Washington, USA
| | - Américo Assan
- Direcção Nacional de Assistência Médica, Ministry of Health, Maputo, Mozambique
| | - Florindo Mudender
- Direcção Nacional de Assistência Médica, Ministry of Health, Maputo, Mozambique
| | - Annette E Ghee
- International Training and Education Center on HIV, Department of Global Health, School of Public Health , University of Washington, Seattle, Washington, USA
| | | | | | - Oliver Bacon
- International Training and Education Center on HIV, University of California, San Francisco, California, USA
| | - Rui Bastos
- Direcção Nacional de Assistência Médica, Ministry of Health, Maputo, Mozambique
| | - Rolanda Manuel
- Direcção Nacional de Assistência Médica, Ministry of Health, Maputo, Mozambique
| | - Lucy Ramirez Li
- Centers for Disease Control and Prevention, Global AIDS Program, Maputo, Mozambique
| | - Catherine McKinney
- Centers for Disease Control and Prevention, Global AIDS Program, Maputo, Mozambique
| | - Lisa J Nelson
- Centers for Disease Control and Prevention, Global AIDS Program, Maputo, Mozambique
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Cain KP, Nelson LJ, Cegielski JP. Global policies and practices for managing persons exposed to multidrug-resistant tuberculosis. Int J Tuberc Lung Dis 2010; 14:269-274. [PMID: 20132616] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
SETTING In the 1960s, treatment for latent tuberculosis infection (LTBI) with isoniazid proved to be so effective, safe, and inexpensive that research into alternative treatments virtually ceased. Now that multidrug-resistant tuberculosis (MDR-TB) is widespread, no data are available to guide the management of persons exposed to MDR-TB (contacts). METHODS We surveyed National TB Program directors and MDR-TB program managers about current practices for managing MDR-TB contacts in countries with an MDR-TB prevalence of >2% in new patients and those with programs for managing MDR-TB. RESULTS Of 35 countries that met the survey criteria, 25 (71%) responded; 24 of these (96%) have a guideline for managing TB contacts. Of these, 19 (76%) usually or always evaluated contacts and treated LTBI. In contrast, 10 (40%) countries reported having a guideline for managing MDR-TB contacts, 11 (44%) usually or always evaluated MDR-TB contacts, and 9 (36%) treated LTBI. Only two (8%) used a regimen that has activity against MDR-TB. Lack of evidence or guidelines was the main reason for not treating MDR-TB contacts. CONCLUSIONS Management of MDR-TB contacts is inconsistent and ineffective due to lack of evidence-based guidelines. There is an urgent need to generate evidence to guide policy.
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Affiliation(s)
- K P Cain
- Division of Tuberculosis Elimination, and Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Abstract
The article sets out the legal principles that govern practice in the US in relation to both the abnormal fetus and the terminally ill newborn. It also provides a view of the law relating to abortion more generally within the US.
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Affiliation(s)
- L J Nelson
- Department of Philosophy & Markkula Center for Applied Ethics, Santa Clara University, Santa Clara, CA 95053-0310, USA.
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Nadol P, Stinson KW, Coggin W, Naicker M, Wells CD, Miller B, Nelson LJ. Electronic tuberculosis surveillance systems: a tool for managing today's TB programs. Int J Tuberc Lung Dis 2008; 12:8-16. [PMID: 18302816] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
The World Health Organization (WHO) released the Stop TB Strategy in 2006, along with a revised version of the tuberculosis (TB) recording and reporting forms and register. These publications illustrate the need for an enhanced TB surveillance system that will include such key elements as rapid assessment of the quality of DOTS services; integration and response to the human immunodeficiency virus/acquired immune-deficiency syndrome (HIV/AIDS) epidemic; TB control challenges, such as increased smear-negative and extra-pulmonary TB and multidrug-resistant TB (MDR-TB); increased engagement of all care providers, such as private health care services and the community; and promotion of research to support program improvement. Electronic surveillance systems utilize computer technology to facilitate the capture, transfer and reporting of the WHO-recommended TB data elements. Electronic surveillance offers several potential advantages over the traditional paper-based systems used in many low-resource settings, such as improved data quality and completeness, more feasible links to other health care programs, quality-enhanced data entry and analysis features and increased data security. These advantages must, however, be weighed against the requirements and costs of electronic surveillance, including implementation and support of a quality paper-based surveillance system and the additional costs associated with infrastructure, training and human resources for the implementation and continuing support of an electronic system. Using examples from three different electronic TB surveillance systems that are being implemented in various resource-limited settings, this article demonstrates the feasibility, requirements and value of such systems to support the WHO-recommended enhancement of TB surveillance.
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Affiliation(s)
- P Nadol
- Global AIDS Program, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Gammino VM, Mboya JJ, Samandari T, Sheth A, Almquist J, Nkubito G, Jimbo W, Obita G, Roels TH, Wells CD, Kilmarx PH, Nelson LJ. Baseline evaluation of routine HIV testing among tuberculosis patients in Botswana. Int J Tuberc Lung Dis 2008; 12:92-94. [PMID: 18302830] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
In January 2004, the government of Botswana introduced a policy of routine, non-compulsory human immunodeficiency virus (HIV) testing to increase testing and access to antiretroviral treatment (ART) for individuals presenting for medical treatment. Before a systematic implementation of the policy, we conducted a cross-sectional survey of tuberculosis (TB) record data from 46 clinics in 10 districts to assess baseline HIV testing rates among TB patients. Recorded HIV results from the facility TB register and TB treatment card were reviewed. Of the 1242 TB patients entered in the register, 47% had a recorded HIV result and 84% of these were co-infected with HIV. TB treatment cards were available for 862 (69%) registered patients. Among the 411 (47%) with test results recorded on the treatment card, 341 (83%) were HIV-infected; of these, 12% were reported to be receiving ART.
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Affiliation(s)
- V M Gammino
- Division of TB Elimination, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Oeltmann JE, Chengeta B, Mboya JJ, Wells CD, Kilmarx PH, Samandari T, Nelson LJ. Reported childhood tuberculosis treatment outcomes, Gaborone and Francistown, Botswana, 1998-2002. Int J Tuberc Lung Dis 2008; 12:186-192. [PMID: 18230252] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
SETTING Botswana. OBJECTIVES To estimate frequencies of tuberculosis (TB) treatment outcomes, assess the validity of reported treatment outcomes, and identify risk factors for death during TB treatment among children aged <15 years during 1998-2002. DESIGN We examined TB treatment outcome frequencies using the national Electronic TB Registry (ETR) data. Treatment and medical records were reviewed to calculate predictive values (PV) for outcomes recorded in the ETR. We interviewed parents of children treated for TB and assessed risk factors for death during treatment via case-control study. RESULTS Of 5483 patients, 3646 (67%) were cured or completed treatment and 577 (10.5%) died during treatment. The PV for ETR was 76% for death and 97% for cured or completed treatment. We interviewed parents of 91 children who died during treatment and 220 children who completed treatment. Human immunodeficiency virus (HIV) status was unknown for 76% of the children and 54% of the parents. Parent-reported adverse effects to anti-tuberculosis medication (adjusted odds ratio [aOR] 4.9, 95% confidence limit [CL] 2.2-9.2), and lower patient age (aOR 2.2, 95%CL 1.2-4.2) were associated with death during treatment. CONCLUSIONS TB control programs in Botswana should assess for potential adverse effects of anti-tuberculosis medication and expand HIV testing among children with TB and their parents.
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Affiliation(s)
- J E Oeltmann
- Division of TB Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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Wells CD, Cegielski JP, Nelson LJ, Laserson KF, Holtz TH, Finlay A, Castro KG, Weyer K. HIV infection and multidrug-resistant tuberculosis: the perfect storm. J Infect Dis 2007; 196 Suppl 1:S86-107. [PMID: 17624830 DOI: 10.1086/518665] [Citation(s) in RCA: 322] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Multidrug-resistant (MDR) tuberculosis (TB) has emerged as a global epidemic, with ~425,000 new cases estimated to occur annually. The global human immunodeficiency virus (HIV) infection epidemic has caused explosive increases in TB incidence and may be contributing to increases in MDR-TB prevalence. METHODS We reviewed published studies and available surveillance data evaluating links between HIV infection and MDR-TB to quantify convergence of these 2 epidemics, evaluate the consequences, and determine essential steps to address these epidemics. RESULTS Institutional outbreaks of MDR-TB have primarily affected HIV-infected persons. Delayed diagnosis, inadequate initial treatment, and prolonged infectiousness led to extraordinary attack rates and case-fatality rates among HIV-infected persons. Whether this sequence occurs in communities is less clear. MDR-TB appears not to cause infection or disease more readily than drug-susceptible TB in HIV-infected persons. HIV infection may lead to malabsorption of anti-TB drugs and acquired rifamycin resistance. HIV-infected patients with MDR-TB have unacceptably high mortality; both antiretroviral and antimycobacterial treatment are necessary. Simultaneous treatment requires 6-10 different drugs. In HIV-prevalent countries, TB programs struggle with increased caseloads, which increase the risk of acquired MDR-TB. Surveillance data suggest that HIV infection and MDR-TB may converge in several countries. CONCLUSIONS Institutional outbreaks, overwhelmed public health programs, and complex clinical management issues may contribute to the convergence of the MDR-TB and HIV infection epidemics. To forestall disastrous consequences, infection control, rapid case detection, effective treatment, and expanded program capacity are needed urgently.
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Affiliation(s)
- Charles D Wells
- Division of Tuberculosis Elimination, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Jereb JA, Nelson LJ, Castro KG. Commentary on the risk of active tuberculosis. Arch Pediatr Adolesc Med 2006; 160:317-8. [PMID: 16520453 DOI: 10.1001/archpedi.160.3.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
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Nelson LJ. Markets and managed care ethics. Cumberland Law Rev 2006; 28:325-8. [PMID: 16437782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Affiliation(s)
- L J Nelson
- Cumberland School of Law, Samford University, Birmingham, AL, USA
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Nelson LJ, Naik Y, Tsering K, Cegielski JP. Population-based risk factors for tuberculosis and adverse outcomes among Tibetan refugees in India, 1994-1996. Int J Tuberc Lung Dis 2005; 9:1018-26. [PMID: 16158895] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
SETTING Tibetan refugees in India, 1994-1996. OBJECTIVE To determine tuberculosis (TB) incidence, independent risk factors for TB, and predictors of adverse outcomes. DESIGN Data from a house-to-house census/demographic survey were merged with TB patient data. Separate multivariable models for each birthplace were developed for outcomes of interest. RESULTS From 1994 to 1996, 47,491 Tibetans were surveyed and 1197 TB cases confirmed (incidence 835/ 100,000). Risk factors for TB in separate multivariable models differed by place of birth. Independent predictors of death for Tibet-born refugees included age >50 years, extra-pulmonary TB, and second-line therapy, while for India-born refugees they included second-line therapy and no improvement at the end of treatment. No significant risk factors for default were identified for Tibet-born refugees, while region of residence and the absence of a BCG scar were independent predictors among those born in India. Predictors of receipt of second-line therapy among Tibet-born refugees included region, years in camps, and prior TB, while among those born in India they were region, age > or =20 years, sputum-positive at diagnosis, and previous TB. CONCLUSIONS TB incidence in Tibetan refugee settlements exceeds the highest national TB rates, and country of birth determines risk factors. TB control efforts in India should include this population.
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Affiliation(s)
- L J Nelson
- Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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Nelson LJ, Talbot EA, Mwasekaga MJ, Ngirubiu PK, Mwansa RA, Notha M, Wells CD. Antituberculosis drug resistance and anonymous HIV surveillance in tuberculosis patients in Botswana, 2002. Lancet 2005; 366:488-90. [PMID: 16084258 DOI: 10.1016/s0140-6736(05)67062-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Two surveys undertaken in Botswana in the 1990s have recorded low rates of antituberculosis drug resistance, despite a three-fold rise in tuberculosis since 1989. We undertook a third survey to determine both trends since 1995 and HIV prevalence in tuberculosis patients in Botswana. Sputum specimens were obtained from patients nationwide in 2002 who also underwent anonymous, rapid HIV testing by use of Oraquick. Of 2200 sputum smear-positive patients and 219 previously treated patients with suspected recurrent tuberculosis, 1457 (60%) were infected with HIV. Resistance to at least one drug in new patients rose from 16 (3.7%) isolates in 1995 to 123 (10.4%; p<0.0001) in 2002. Interventions for tuberculosis control are urgently needed in Botswana to prevent further emergence of drug resistance.
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Affiliation(s)
- L J Nelson
- Division of Tuberculosis Elimination, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention (CDC), Atlanta, GA 30333, USA.
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Abstract
Although accurate data are scarce for children, tuberculosis (TB) represents one of the most common infectious causes of morbidity and mortality worldwide. TB case rates have declined among children in the United States in the last decade, but they remain high among children from low-income countries and racial or ethnic minorities. Establishing the definitive diagnosis of TB in a child remains difficult and frequently relies on a constellation of history, clinical findings, and bacteriology. Recently, updated national and international treatment recommendations have been published. Contact investigation and treatment using directly observed therapy are important components of the optimal case detection and management of TB in children.
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Affiliation(s)
- Lisa J Nelson
- Division of Tuberculosis Elimination, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, 1600 Clifton Road NE, Atlanta, GA 30333, USA.
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Affiliation(s)
- Lisa J Nelson
- Division of Tuberculosis Elimination, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, 1600 Clifton Rd, MS E-10, Atlanta, GA 30333, USA.
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Abstract
OBJECTIVE To describe trends and highlight epidemiologic and clinical characteristics of childhood tuberculosis (TB) in the United States. METHODS All verified TB cases reported to the national TB surveillance system from 1993 to 2001 were included. A child was defined as a person younger than 15 years. RESULTS A total of 11,480 childhood TB cases were reported. Case rates (TB cases/100,000 population) in all children declined from 2.9 (n = 1663) in 1993 to 1.5 (n = 931) in 2001. Among children, those who were younger than 5 years had the highest rate. California, Texas, and New York accounted for 48% of all childhood TB cases. In 2001, TB case rates were higher for foreign-born (12.2) than US-born children (1.1). Hispanic and non-Hispanic black children accounted for nearly three quarters of all cases. Twenty-four percent of children with TB were foreign-born children, with the largest number originating from Mexico (39.8%), the Philippines (8.6%), and Vietnam (5.7%). Most children had evidence of pulmonary TB disease (78.9%). Among culture-positive cases without previous TB, drug resistance to at least isoniazid was 7.3% and to isoniazid and rifampin was 1.6%. In 1999, 82.9% of children received directly observed therapy for at least part of their treatment and 94.8% completed treatment. CONCLUSIONS Although the overall TB case number among children is declining in the United States, certain groups of children (eg, younger children, racial and ethnic minorities, foreign-born) are at higher risk for TB. As the United States moves toward the elimination of TB, future efforts should endeavor to prevent all cases of childhood TB.
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Affiliation(s)
- Lisa J Nelson
- National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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Wells CD, Nelson LJ. New international efforts in childhood tuberculosis: proceedings from the 2002 Workshop on Childhood Tuberculosis, Montreal, Canada, 6-7 October 2002. Int J Tuberc Lung Dis 2004; 8:630-5. [PMID: 15137547] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
On 6-7 October 2002, the International Union Against Tuberculosis and Lung Disease (IUATLD), the International Pediatrics Association (IPA), the United States Centers for Disease Control and Prevention (CDC), the United States National Institutes for Health (NIH), and the World Health Organization (WHO) co-sponsored and organized a Workshop on 'Tuberculosis in Children' to assess research needs in childhood tuberculosis (TB) in conjunction with the 33rd IUATLD World Conference on Lung Health. Participants included approximately 40 researchers from the sponsoring organizations as well as from academic institutions, and National Tuberculosis (TB) Programs from a number of countries in sub-Saharan Africa, Asia, Latin America, and Eastern Europe. The goals of the workshop were to highlight current gaps in knowledge about childhood TB, to assess research opportunities, and to begin to establish working partnerships and identify funding sources. The workshop focused on six key topics: the global epidemiology of TB among children, clinical practice including diagnosis and case management of childhood TB, basic research, programmatic aspects of the control of TB among children, ethics, and effects of human immunodeficiency virus (HIV) on TB in children. Review papers on these topics were presented as the foundation for the workshop. Participants were then divided into groups to deliberate on critical areas of research and programmatic needs, recommendations for addressing the needs, and strategic planning to increase international focus on childhood TB. The following summary, including data reported and referenced within the review papers presented at the workshop, represents the proceedings of the workshop.
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Affiliation(s)
- C D Wells
- Division of TB Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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Nelson LJ, Wells CD. Global epidemiology of childhood tuberculosis. Int J Tuberc Lung Dis 2004; 8:636-47. [PMID: 15137548] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Tuberculosis (TB) in children has been less of a public health priority in recent years, despite the fact that TB is an important cause of childhood morbidity and mortality worldwide. Data on trends in childhood TB are scarce in the published literature. The diagnosis of TB in children is difficult, and rarely rests on bacteriologic confirmation. Surveillance data for children in many countries are lacking and there are few epidemiologic studies. However, in regions of the world such as sub-Saharan Africa where adult TB is increasing, this trend is likely occurring among children as well. This review documents an increase in childhood TB in many parts of the world. Risk factors vary by region. Improvements in global surveillance of childhood TB, investigation of the role of national TB programs (NTPs) in improving the control of childhood TB, and better identification of risk factors for childhood disease will be crucial to future control efforts for childhood TB. This might include assessment of optimal methods of contact investigations and an analysis of NTP data to assess risk factors for adverse outcomes (e.g., death, default, treatment failure) among children. Ultimately, these data will ensure the success of interventions to reduce the burden of childhood TB using strategies that specifically target this population. As children represent the future burden of TB disease, these efforts could significantly reduce the overall global burden of TB in years to come.
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Affiliation(s)
- L J Nelson
- Division of Tuberculosis Elimination, National Center for HIV, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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Marais BJ, Gie RP, Schaaf HS, Hesseling AC, Obihara CC, Nelson LJ, Enarson DA, Donald PR, Beyers N. The clinical epidemiology of childhood pulmonary tuberculosis: a critical review of literature from the pre-chemotherapy era. Int J Tuberc Lung Dis 2004; 8:278-85. [PMID: 15139465] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
The pre-chemotherapy literature represents an impressive body of evidence that clarifies important epidemiological concepts in childhood tuberculosis. Reports describe the major transitions in tuberculosis, from exposure to infection and from infection to disease (morbidity and mortality), without the influence of chemotherapy. Children with household exposure to a sputum smear-positive source case experienced the greatest risk of becoming infected and of developing subsequent disease. Household exposure to a sputum smear-negative source case or non-household exposure still posed an appreciable, although greatly reduced, risk. Infection in children less than 2 years of age indicated a probable household source case. The majority of older children who were infected did not have a household source identified, and presumably became infected in the community. The annual risk of infection (ARI) was not constant across all ages, but seemed to increase during periods of widening social contact. Infants and adolescents were the groups at highest risk for disease development and death following primary infection.
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Affiliation(s)
- B J Marais
- Centre for TB Research and Education and the Department of Paediatrics and Child Health, Tygerberg Children's Hospital and the Faculty of Health Sciences, Stellenbosch University, Cape Town, South Africa.
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Nelson LJ, Cool LG, Forschler BT, Haverty MI. Correspondence of soldier defense secretion mixtures with cuticular hydrocarbon phenotypes for chemotaxonomy of the termite genus Reticulitermes in North America. J Chem Ecol 2001; 27:1449-79. [PMID: 11504039 DOI: 10.1023/a:1010325511844] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Soldier defense secretions from samples of Reticulitermes collected in California, Nevada, Arizona, New Mexico, and Georgia were characterized and correlated with cuticular hydrocarbon phenotypes. Twenty-seven cuticular hydrocarbon phenotypes have been defined, and soldier defense secretion (SDS) phenotypes have been described for 25 of these. Forty-five terpenoid compounds were found, including monoterpenes, sesquiterpenes, and a few diterpenes. The monoterpenes include (-)-alpha-pinene, (-)-beta-pinene, (-)-camphene, myrcene, (Z)- and (E)-ocimene, and (-)-limonene. The major sesquiterpenes produced are (+)-gamma-cadinene, (+)-gamma-cadinene aldehyde, (-)-germacrene A, germacrene B, gamma-himachalene, and beta-bisabolene. Some SDS phenotypes pair with more than one cuticular hydrocarbon phenotype; however, with two exceptions, each hydrocarbon phenotype is associated with only one SDS phenotype. These chemical characterizations lend support to the conclusion that there are numerous undescribed species of Reticulitermes in North America.
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Affiliation(s)
- L J Nelson
- Chemical Ecology of Forest Insects, Pacific Southwest Research Station, USDA Forest Service, Berkeley, California 94701, USA.
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Dabos KJ, Nelson LJ, Bradnock TJ, Parkinson JA, Sadler IH, Hayes PC, Plevris JN. The simulated microgravity environment maintains key metabolic functions and promotes aggregation of primary porcine hepatocytes. Biochim Biophys Acta 2001; 1526:119-30. [PMID: 11325533 DOI: 10.1016/s0304-4165(01)00097-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The high aspect ratio vessel allows the culture of primary porcine hepatocytes in an environment of low shear stress and simulated microgravity. Primary porcine hepatocytes have been difficult to maintain in culture long term while preserving their metabolic functions. This study was carried out in order to characterise key metabolic functions of cell aggregates formed by primary porcine hepatocytes cultured in a high aspect ratio vessel for a predetermined period of 21 days. 10(8) porcine hepatocytes were loaded into the high aspect ratio vessel and continuously rotated during the experiments. 0.7 ml of the culture medium was sampled on days 1, 2, 4, 7, 10, 14 and 21. 1H nuclear magnetic resonance spectroscopy of the culture medium, using the presaturation technique, assessed the following: glucose metabolism, glutamine synthesis and ketogenesis. There was glucose breakdown anaerobically during the first 10 days as manifested by lactate production and pyruvate and threonine consumption. After day 10 there was significantly smaller lactate production (day 1 vs day 10 P < 0.01), and significantly smaller pyruvate (day 1 vs day 14 P < 0.03) and threonine consumption (day 1 vs day 10 P < 0.002), indicative of an aerobic metabolic pattern. Significantly more glutamate was produced after day 10 (day 1 vs day 10 P < 0.031), and more glutamine was consumed after day 14. There was a steadily diminishing production of acetate which reached a minimum on day 14 (day 2 vs day 14 P < 0.00014). After an initial 10 day period of acclimatisation cell aggregates formed in the high aspect ratio vessel switched from the anaerobic pattern of metabolism to the more efficient aerobic pattern, which was exhibited until the experiments were terminated. The high aspect ratio vessel is suitable for long-term culture of porcine hepatocytes and it is worthwhile carrying out scale-up feasibility studies.
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Affiliation(s)
- K J Dabos
- Liver Cell Biology Laboratory, Department of Internal Medicine, University of Edinburgh, Edinburgh, UK.
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Nelson DR, Tissot M, Nelson LJ, Fatland CL, Gordon DM. Novel wax esters and hydrocarbons in the cuticular surface lipids of the red harvester ant, Pogonomyrmex barbatus. Comp Biochem Physiol B Biochem Mol Biol 2001; 128:575-95. [PMID: 11250553 DOI: 10.1016/s1096-4959(00)00354-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The cuticular surface lipids of the red harvester ant, Pogonomyrmex barbatus, were found to contain minor amounts of novel wax esters, in addition to the major components, hydrocarbons. The wax esters ranged in carbon number from C19 to C31 and consisted of esters of both odd- and even-numbered alcohols and acids. Each wax ester with a given carbon number eluted at several different retention times indicating possible methyl branching in either the fatty acid or alcohol moiety, or in both moieties. Each eluting peak of wax esters consisted of a mixture of wax esters of the same carbon number in which the fatty acid moiety ranged from C8 to C18, and the alcohol moiety ranged from C8 to C17. Some wax esters were largely found on the head indicating they may be of a glandular origin. The hydrocarbons consisted of: n-alkanes, C23 to C33; odd-numbered n-alkenes, C27 to C35; and the major components, methyl-branched alkanes, C26 to over C49. Notable components of the methyl-branched alkanes were 2-methyltriacontane, and the novel trimethylalkanes with a single methylene between the first and second branch points, 13,15,19-trimethylhentriacontane and 13,15,21-trimethyltritriacontane.
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Affiliation(s)
- D R Nelson
- Biosciences Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, State University Station, Fargo, ND 58105, USA.
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Abstract
Liver failure, notwithstanding advances in medical management, remains a cause of considerable morbidity and mortality in the developed world. Although bioartificial liver (BAL) support systems offer the potential of significant therapeutic benefit for such patients, many issues relating to their use are still to be resolved. In this review, these issues are examined in terms of the functions required, the cells of choice in such a system, and the most appropriate environment to optimize the function of such cells. The major functions identified to date for a BAL are ammonia detoxification and biotransformation of toxic compounds, although this somewhat belies the complexity of the functions required. Two practical choices for cell type within such a system are xenogenic hepatocytes and immortalized human hepatocyte lines. Both these choices have drawbacks, such as the transmission of zoonoses and malignant infiltration, respectively. Finally, improvements in culture conditions, such as supplemented media, biodegradable scaffolds, and coculture, offer the possibility of prolonging the differentiated function of hepatocytes in a BAL.
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Affiliation(s)
- J Tsiaoussis
- Department of Internal Medicine, Liver Unit, Royal Infirmary of Edinburgh, Edinburgh, Scotland
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Meyer MJ, Nelson LJ. Respecting what we destroy. Reflections on human embryo research. Hastings Cent Rep 2001; 31:16-23. [PMID: 11478088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Nelson LJ, Newsome PN, Howie AF, Hadoke PW, Dabos KJ, Walker SW, Hayes PC, Plevris JN. An improved ex vivo method of primary porcine hepatocyte isolation for use in bioartificial liver systems. Eur J Gastroenterol Hepatol 2000; 12:923-30. [PMID: 10958220 DOI: 10.1097/00042737-200012080-00012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
INTRODUCTION Primary porcine hepatocytes are commonly, used in bioartificial liver devices and for in vitro studies of hepatocyte function. Although in vivo isolation of porcine hepatocytes can give high yield and viability, such methods are time-consuming and expensive, requiring specialist surgical facilities. AIM To develop a simple, low-cost, high viability, high yield, reproducible ex vivo method for obtaining functional porcine hepatocytes for use in bioartificial liver systems. METHODS Weanling piglets (12 kg) were killed with pentobarbitone sodium, the infra-hepatic inferior vena cava was clamped and the supra-hepatic inferior vena cava cannulated. The whole liver was retrogradely perfused in situ with cold saline and excised, followed by an ex vivo open-loop and re-circulating perfusion method (at 37 degrees C) in five steps. The liver was disrupted, sequentially filtered in washing buffer, purified by centrifugation and resuspended in Williams E medium. Viability and cell number were assessed using trypan blue exclusion. The cells were subsequently cultured in serum-free chemically-defined medium and function was assessed. RESULTS The time interval from when the animals were killed to the final cell wash was 105+/-5 min (n = 20). Cell viability was 85+/-6% with a yield of (2.4+/-0.5) x 10(10) from 12+/-1 kg piglets using 0.03% (w/v) collagenase (n = 20). Hepatocytes from all isolations were successfully plated and grown in monolayer culture. In freshly isolated hepatocytes (day 0) total protein content (TP) was 1.2+/-0.1 mg/10(6) cells (n = 5) and 1.2+/-0.3 mg/10(6) cells (n = 5) for day 2 monolayer cultures, corresponding to approximately 9x10(6) hepatocytes per dish. The percentage of total LDH released into the medium was 13+/-4% for day 0 and 8+/-4% at day 2; conversely, intracellular LDH activities were 87+/-4% and 92+/-4% of the total, respectively. The urea synthesis rate was 196+/-36 nmol/h/mg total protein at day 0 (n = 5) and 292+/-62 nmol/h/mg protein (n = 9) at day 2. The total P450 content was 99+/-11 pmol/mg total protein for fresh cells (n = 5) and maintained at 89+/-35 pmol/mg total protein in day 2 cultures. CONCLUSIONS This ex vivo method provides a high viability, high yield, cost-effective and rapid technique for isolating functional porcine hepatocytes with high plating efficiency, which compares favourably with results obtained using complex in vivo techniques.
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Affiliation(s)
- L J Nelson
- Dept of Medicine, University of Edinburgh, UK.
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Abstract
Few conditions in medicine are more dramatic or more devastating than acute liver failure. Our understanding and treatment of this condition have been limited by the lack of satisfactory animal models. The most widely used models consist of surgical anhepatic and devascularization procedures and hepatotoxins, such as galactosamine and acetaminophen. Potential disadvantages with surgical models are their inability to recreate the inflammatory milieu that exists in acute liver failure and their reliance on surgical expertise. Models using hepatotoxins are free of such constraints. Galactosamine-induced hepatotoxicity is more predictable than acetaminophen, but its cost and lack of a human equivalent clinical syndrome has restricted its use. Acetaminophen-based models offer the greatest potential but have proven the most difficult to develop because of difficulties with reproducibility and refractory anemia. Although progress has been made, research must continue in this area to establish an animal model with minimal disadvantages that would accurately reflect the clinical syndrome seen in humans.
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Affiliation(s)
- P N Newsome
- Liver Unit, Department of Internal Medicine, Royal Infirmary of Edinburgh, Scotland
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Nelson LJ, Cranford RE. Michael Martin and Robert Wendland: beyond the vegetative state. J Contemp Health Law Policy 1999; 15:427-53. [PMID: 10394762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- L J Nelson
- Department of Philosophy, Santa Clara University, USA
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Abstract
We address four major issues related to physicians' fear of litigation: What are physicians' attitudes and beliefs toward malpractice? To whom or what do they attribute the "malpractice crisis"? Is fear of litigation associated with demographic and practice variables? What measures do physicians take to reduce risk? Hospital physicians in a southeastern health science center were surveyed (N = 356). Physicians attributed the malpractice crisis to circumstances outside medicine and beyond their control, perceived some patients as suitprone, and reported altering their practice to avoid being sued. Litigation fear was associated with physicians who were female, younger, not board certified, less clinically experienced, more clinically active, defendants in prior lawsuits, and in high-risk specialties. Physicians who were especially fearful of litigation placed less value in risk-management techniques. The findings are important in understanding how the prospect of litigation is perceived by physicians and how that perception may affect medical practice.
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Affiliation(s)
- J E Schumacher
- Division of Preventive Medicine, University of Alabama at Birmingham 35205, USA
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