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Rodríguez-Galet A, Ventosa-Cubillo J, Bendomo V, Eyene M, Mikue-Owono T, Nzang J, Ncogo P, Benito A, Holguín Á. HIV diagnosis in Equatorial Guinea. Keys to reduce the diagnostic and therapeutic delay. J Infect Public Health 2024; 17:102476. [PMID: 38901117 DOI: 10.1016/j.jiph.2024.102476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND In Equatorial Guinea, only 54 % of people living with HIV know their HIV status. There are no confirmatory or molecular diagnostic techniques for early diagnosis or monitoring of infection in the country. Rapid diagnostic tests can induce false-positive diagnoses if used as a confirmatory technique. Our study aimed to identify the challenges of early HIV diagnosis in Equatorial Guinea by analyzing the rate of false positive diagnoses, diagnostic and therapeutic delays, and treatment failures among those on antiretroviral therapy. METHODS From 2019-2022, dried blood from 341 children, adolescents and adults diagnosed in Equatorial Guinea as HIV-positive by rapid diagnostic testing, and from 54 HIV-exposed infants were collected in Bata and sent to Madrid to confirm HIV-infection by molecular (Xpert HIV-1Qual, Cepheid) and/or serological confirmatory assays (Geenius-HIV-1/2, BioRad). HIV diagnostic delay (CD4 <350cells/mm3), advanced disease at diagnosis (CD4 <200cells/mm3) and antiretroviral treatment delay and failure (viraemia >1,000RNA-HIV-1-copies/ml) were also studied after viral quantification (XpertVL HIV-1, Cepheid). RESULTS False-positive diagnoses were identified in 5 % of analysed samples. HIV infection was confirmed in 90.5 % of previously diagnosed patients in Equatorial Guinea and 3.7 % of HIV-exposed children undiagnosed in the field. Two-thirds of each new HIV patient had delayed diagnosis, and one-third had advanced disease. Treatment delay occurred in 28.3 % of patients, being around four times more likely in adolescents/adults than children. More than half (56 %) of 232 treated patients presented treatment failure, being significantly higher in children/adolescents than in adults (82.9 %/90 % vs. 45.6 %, p < 0.001). CONCLUSION We identified some challenges of early HIV diagnosis in Equatorial Guinea, revealing a high rate of false positive diagnoses, diagnostic/treatment delays, and treatment failures that need to be addressed. The implementation of more accurate rapid diagnostic techniques and confirmatory tests, along with improving access to care, treatment, awareness, and screening, would contribute to controlling the spread of HIV in the country.
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Affiliation(s)
- Ana Rodríguez-Galet
- Laboratorio de Epidemiología Molecular del VIH-1, Departamento de Microbiología, Hospital Universitario Ramón y Cajal-Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS) y RITIP-CoRISpe, 28034, Madrid, Spain.
| | | | - Verónica Bendomo
- Unidad de Referencia de Enfermedades Infecciosas (UREI), Hospital Regional de Bata, Bata 88240, Equatorial Guinea.
| | - Manuel Eyene
- Unidad de Referencia de Enfermedades Infecciosas (UREI), Hospital Regional de Bata, Bata 88240, Equatorial Guinea.
| | - Teresa Mikue-Owono
- Laboratorio de Análisis Clínicos, Hospital Regional de Bata, Bata 88240, Equatorial Guinea.
| | - Jesús Nzang
- Fundación Estatal Salud, Infancia y Bienestar Social (CSAI), 28029 Madrid, Spain.
| | - Policarpo Ncogo
- Fundación Estatal Salud, Infancia y Bienestar Social (CSAI), 28029 Madrid, Spain.
| | - Agustín Benito
- Centro Nacional de Medicina Tropical (CNMT), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFECT), 28029 Madrid, Spain.
| | - África Holguín
- Laboratorio de Epidemiología Molecular del VIH-1, Departamento de Microbiología, Hospital Universitario Ramón y Cajal-Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS) y RITIP-CoRISpe, 28034, Madrid, Spain; Centro de Investigación Biomédica en Red en Epidemiologia y Salud Pública (CIBERESP), 28029 Madrid, Spain.
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Mouinga-Ondeme A, Longo-Pendy NM, Moussadji Kinga IC, Ngoubangoye B, Moussavou-Boundzanga P, Boundenga L, Diane A, Sica J, Mfouo-Tynga IS, Ngoungou EB. Risk Factors Associated with Opportunistic Infections among People Living with HIV/AIDS and Receiving an Antiretroviral Therapy in Gabon, Central Africa. Viruses 2024; 16:85. [PMID: 38257785 PMCID: PMC10819398 DOI: 10.3390/v16010085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/11/2023] [Accepted: 11/11/2023] [Indexed: 01/24/2024] Open
Abstract
The Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome (HIV/AIDS) is still one of the main causes of death in sub-Saharan Africa. Antiretroviral therapies (ARTs) have significantly improved the health conditions of people living with HIV/AIDS (PLWHA). Consequently, a significant drop in morbidity and mortality, along with a reduced incidence of opportunistic infections (OIs), has been observed. However, certain atypical and biological profiles emerge in ART patients post-examination. The objective of this study was to identify the risk factors that contributed to the onset of OIs in HIV patients undergoing ART in Gabon. Epidemiological and biological data were obtained from medical records (2017 to 2019) found at the outpatient treatment centre (CTA) of Franceville in Gabon. Samples for blood count, CD4, and viral load analysis at CIRMF were collected from PLWHA suffering from other pathogen-induced conditions. A survey was carried out and data were analysed using Rstudio 4.0.2 and Excel 2007 software. Biological and socio-demographic characteristics were examined concerning OIs through both a univariate analysis via Fisher's exact tests or chi2 (χ2), and a multivariate analysis via logistic regression. Out of the 300 participants initially selected, 223 were included in the study, including 154 (69.05%) women and 69 (30.95%) men. The mean age was 40 (38.6; 41.85), with individuals ranging from 2 to 77 years old. The study cohort was classified into five age groups (2 to 12, 20 to 29, 30 to 39, 40 to 49, and 50 to 77 years old), among which the groups aged 30 to 39 and 40 to 49 emerged as the largest, comprising 68 (30.5%) and 75 (33.6%) participants, respectively. It was noted that 57.9% of PLWHA had developed OIs and three subgroups were distinguished, with parasitic, viral, and bacterial infections present in 18%, 39.7%, and 55.4% of cases, respectively. There was a correlation between being male and having a low CD4 T-cell count and the onset of OIs. The study revealed a high overall prevalence of OIs, and extending the study to other regions of Gabon would yield a better understanding of the risk factors associated with the onset of these infections.
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Affiliation(s)
- Augustin Mouinga-Ondeme
- Unité des Infections Rétrovirales et Pathologies Associées, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (P.M.-B.); (A.D.); (I.S.M.-T.)
| | - Neil Michel Longo-Pendy
- Unité de Recherches en Ecologie de la Santé, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (N.M.L.-P.); (L.B.)
| | - Ivan Cyr Moussadji Kinga
- Centre de Primatologie, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (I.C.M.K.); (B.N.)
| | - Barthélémy Ngoubangoye
- Centre de Primatologie, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (I.C.M.K.); (B.N.)
| | - Pamela Moussavou-Boundzanga
- Unité des Infections Rétrovirales et Pathologies Associées, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (P.M.-B.); (A.D.); (I.S.M.-T.)
| | - Larson Boundenga
- Unité de Recherches en Ecologie de la Santé, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (N.M.L.-P.); (L.B.)
- Département d’Anthropologie, Université de Durham, South Road, Durham DH1 3LE, UK
| | - Abdoulaye Diane
- Unité des Infections Rétrovirales et Pathologies Associées, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (P.M.-B.); (A.D.); (I.S.M.-T.)
| | - Jeanne Sica
- Centre de Traitement Ambulatoire, Franceville BP 277, Gabon;
| | - Ivan Sosthene Mfouo-Tynga
- Unité des Infections Rétrovirales et Pathologies Associées, Centre Interdisciplinaire de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon; (P.M.-B.); (A.D.); (I.S.M.-T.)
| | - Edgard Brice Ngoungou
- Département d’Epidémiologie, Biostatistiques et Informatique Médicale (DEBIM)/Unité de Recherche en Epidémiologie des Maladies Chroniques et Santé Environnement (UREMCSE), Faculté de Médecine, Université des Sciences de la Santé, Libreville-Owendo BP 18231, Gabon;
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Lejone TI, Mahomed O. Magnitude and Determinants of Virological Failure Among Patients >15 Years on Anti-Retroviral Therapy in Rural Lesotho Between 2015 and 2019 - A Retrospective Cohort Study. HIV AIDS (Auckl) 2023; 15:611-620. [PMID: 37849794 PMCID: PMC10577259 DOI: 10.2147/hiv.s424277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/10/2023] [Indexed: 10/19/2023] Open
Abstract
Background Lesotho has the second-highest HIV prevalence globally at an estimated 23%, with approximately 87% of the population between 15 and 59 years of age reported to be receiving antiretroviral treatment. There is an urgent need to increase access to effective ART due to increasing rates of first- and second-line treatment failure. Sustaining successful treatment and limiting the development of virological failure is essential, hence the need for early detection of increased viral load indicating drug resistance or rapid progression of viral replication. Aim The aim of the study was to determine the proportion of patients with HIV with virological failure and to identify factors associated with virological failure in two districts of Lesotho. Methods A retrospective cohort study was conducted in two districts (Butha-Buthe and Mokhotlong) in Lesotho. Data for all patients (age ≥15 years) in the viral load (VL) monitoring database with at least two consecutive viral load results between December 2015 and December 2019 from 22 health facilities were extracted. Descriptive data were presented using tables and figures. Bivariate and multivariate analyses were performed. A p-value < 0.05 was considered a statistically significant association. Results Only 4% (n = 913) of the study participants had virological failure. Longer time on treatment >65 months (AOR: 1.85 CI: 1.59-2.15) and being on second-line ART regimen (AOR: 75.23 95% CI: 75.00-99.15) were significantly (p < 0.001) associated with virological failure. Conclusion Virological failure among the study participants is lower compared to other settings. The study identified duration on treatment, treatment regimen as high risk for virological failure. Targeted interventions should be developed for these high-risk group individuals, with continuous monitoring of virological response and appropriate drug switching to clients to achieve improved outcomes.
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Affiliation(s)
- Thabo Ishmael Lejone
- SolidarMed, Lesotho, South Africa
- Discipline of Public Health Medicine, University of KwaZulu Natal, Durban, South Africa
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Faraci G, Park SY, Dubé MP, Lee HY. Full-spectrum HIV drug resistance mutation detection by high-resolution complete pol gene sequencing. J Clin Virol 2023; 164:105491. [PMID: 37182384 PMCID: PMC10330399 DOI: 10.1016/j.jcv.2023.105491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/15/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Drug resistance mutation testing is a key element for HIV clinical management, informing effective treatment regimens. However, resistance screening in current clinical practice is limited in reporting linked cross-class resistance mutations and minority variants, both of which may increase the risk of virological failure. METHODS To address these limitations, we obtained 358 full-length pol gene sequences from 52 specimens of 20 HIV infected individuals by combining microdroplet amplification, unique molecular identifier (UMI) labeling, and long-read high-throughput sequencing. RESULTS We conducted a rigorous assessment of the accuracy of our pipeline for precision drug resistance mutation detection, verifying that a sequencing depth of 35 high-throughput reads achieved complete, error-free pol gene sequencing. We detected 26 distinct drug resistance mutations to Protease Inhibitors (PIs), Nucleoside Reverse Transcriptase Inhibitors (NRTIs), Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs), and Integrase Strand Transfer Inhibitors (INSTIs). We detected linked cross-class drug resistance mutations (PI+NRTI, PI+NNRTI, and NRTI+NNRTI) that confer cross-resistance to multiple drugs in different classes. Fourteen different types of minority mutations were also detected with frequencies ranging from 3.2% to 19%, and the presence of these mutations was verified by Sanger reference sequencing. We detected a putative transmitted drug resistance mutation (TDRM) in one individual that persisted for over seven months from the first sample collected at the acute stage of infection prior to seroconversion. CONCLUSIONS Our comprehensive drug resistance mutation profiling can advance clinical practice by reporting mutation linkage and minority variants to better guide antiretroviral therapy options.
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Affiliation(s)
- Gina Faraci
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, Unites States
| | - Sung Yong Park
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, Unites States
| | - Michael P Dubé
- Department of Medicine and Division of Infectious Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Ha Youn Lee
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, Unites States.
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Mamo DN, Yilma TM, Fekadie M, Sebastian Y, Bizuayehu T, Melaku MS, Walle AD. Machine learning to predict virological failure among HIV patients on antiretroviral therapy in the University of Gondar Comprehensive and Specialized Hospital, in Amhara Region, Ethiopia, 2022. BMC Med Inform Decis Mak 2023; 23:75. [PMID: 37085851 PMCID: PMC10122289 DOI: 10.1186/s12911-023-02167-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 04/04/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Treatment with effective antiretroviral therapy (ART) reduces viral load as well as HIV-related morbidity and mortality in HIV-positive patients. Despite the expanded availability of antiretroviral therapy around the world, virological failure remains a serious problem for HIV-positive patients. Thus, Machine learning predictive algorithms have the potential to improve the quality of care and predict the needs of HIV patients by analyzing huge amounts of data, and enhancing prediction capabilities. This study used different machine learning classification algorithms to predict the features that cause virological failure in HIV-positive patients. METHOD An institution-based secondary data was used to conduct patients who were on antiretroviral therapy at the University of Gondar Comprehensive and Specialized Hospital from January 2020 to May 2022. Patients' data were extracted from the electronic database using a structured checklist and imported into Python version three software for data pre-processing and analysis. Then, seven supervised classification machine-learning algorithms for model development were trained. The performances of the predictive models were evaluated using accuracy, sensitivity, specificity, precision, f1-score, and AUC. Association rule mining was used to generate the best rule for the association between independent features and the target feature. RESULT Out of 5264 study participants, 1893 (35.06%) males and 3371 (64.04%) females were included. The random forest classifier (sensitivity = 1.00, precision = 0.987, f1-score = 0.993, AUC = 0.9989) outperformed in predicting virological failure among all selected classifiers. Random forest feature importance and association rules identified the top eight predictors (Male, younger age, longer duration on ART, not taking CPT, not taking TPT, secondary educational status, TDF-3TC-EFV, and low CD4 counts) of virological failure based on the importance ranking, and the CD-4 count was recognized as the most important predictor feature. CONCLUSION The random forest classifier outperformed in predicting and identifying the relevant predictors of virological failure. The results of this study could be very helpful to health professionals in determining the optimal virological outcome.
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Affiliation(s)
- Daniel Niguse Mamo
- Department of Health Informatics, College of Medicine and Health Sciences, School of Public Health, Arbaminch University, Arbaminch, Ethiopia.
| | - Tesfahun Melese Yilma
- Department of Health Informatics, Institute of Public Health, University of Gondar, Gondar, Ethiopia
| | - Makida Fekadie
- Department of Health Informatics, Institute of Public Health, University of Gondar, Gondar, Ethiopia
| | - Yakub Sebastian
- College of Engineering, IT, and Environment, Charles Darwin University, Casuarina, Australia
| | - Tilahun Bizuayehu
- Department of Internal Medicine, School of Medicine, University of Gondar, Gondar, Ethiopia
| | - Mequannent Sharew Melaku
- Department of Health Informatics, Institute of Public Health, University of Gondar, Gondar, Ethiopia
| | - Agmasie Damtew Walle
- Department of Health Informatics, college of health science, Mettu University, Mettu, Ethiopia
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Mouinga-Ondémé A, Boundenga L, Koumba Koumba IP, Idam Mamimandjiami A, Diané A, Engone-Ondo JD, Djuicy DD, Sica J, Mombo LE, Gessain A, Aghokeng Fobang A. Human T-Lymphotropic virus type 1 and human immunodeficiency virus co-infection in rural Gabon. PLoS One 2022; 17:e0271320. [PMID: 35867643 PMCID: PMC9307203 DOI: 10.1371/journal.pone.0271320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 06/28/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction Human T-cell lymphotrophic virus type-1 (HTLV-1) and human immunodeficiency virus (HIV-1) co-infection occur in many populations. People living with HIV-1 and infected with HTLV-1 seem more likely to progress rapidly towards AIDS. Both HTLV-1 and HIV-1 are endemic in Gabon (Central Africa). We investigated HTLV-1 and HIV-1 co-infection in the Haut-Ogooué province, and assessed factors that may favor the rapid evolution and progression to AIDS in co-infected patients. Methods Plasma samples from HTLV-1 patients were tested using ELISA, and positive samples were then tested by western blot assay (WB). We used the polymerase chain reaction to detect HTLV-1 Tax/Rex genes using DNA extracted from the buffy coat of ELISA-positives samples. Results We recruited 299 individuals (mean age 46 years) including 90 (30%) men and 209 (70%) women, all of whom are under treatment at the Ambulatory Treatment Centre of the province. Of these, 45 were ELISA HTLV-1/2 seropositive. According to WB criteria, 21 of 45 were confirmed positive: 20 were HTLV-1 (44%), 1 was HTLV-1/2 (2%), 2 were indeterminate (4%) and 22 were seronegative (49%). PCR results showed that 23 individuals were positive for the Tax/Rex region. Considering both serological and molecular assays, the prevalence of HTLV-1 infection was estimated at 7.7%. Being a woman and increasing age were found to be independent risk factors for co-infection. Mean CD4+ cell counts were higher in HTLV-1/HIV-1 co-infected (578.1 (± 340.8) cells/mm3) than in HIV-1 mono-infected (481.0 (± 299.0) cells/mm3) Individuals. Similarly, the mean HIV-1 viral load was Log 3.0 (± 1.6) copies/ml in mono-infected and Log 2.3 (± 0.7) copies/ml in coinfected individuals. Conclusion We described an overall high prevalence of HTLV-1/HIV-1 co-infection in Gabon. Our findings stress the need of strategies to prevent and manage these co-infections.
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Affiliation(s)
- Augustin Mouinga-Ondémé
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
- * E-mail:
| | - Larson Boundenga
- Groupe Evolution et Transmission Inter-espèces des Pathogènes (GETIP), Département de Parasitologie, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
- Department of Anthropology, Durham University, Durham, United Kingdom
| | - Ingrid Précilya Koumba Koumba
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
- Laboratoire de Biologie Moléculaire et Cellulaire (LABMC), Université des Sciences et Techniques de Masuku (USTM), Franceville, Gabon
| | - Antony Idam Mamimandjiami
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | - Abdoulaye Diané
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | - Jéordy Dimitri Engone-Ondo
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | - Delia Doreen Djuicy
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | - Jeanne Sica
- Centre de Traitement Ambulatoire, Franceville, Gabon
| | - Landry Erik Mombo
- Laboratoire de Biologie Moléculaire et Cellulaire (LABMC), Université des Sciences et Techniques de Masuku (USTM), Franceville, Gabon
| | - Antoine Gessain
- Unité d’Epidémiologie et de Physiopathologie des Virus Oncogènes (EPVO), et CNRS UMR3569, Institut Pasteur de Paris, Paris, France
| | - Avelin Aghokeng Fobang
- Unité Mixte de Recherche sur le VIH et les Maladies Infectieuses Associées, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
- MIVEGEC, Université de Montpellier, CNRS, IRD – Montpellier, Montpellier, France
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Wei Q, Zhao Y, Lv Y, Kang X, Pan S, Yao S, Wang L. High Rate of HIV-1 Drug Resistance in Antiretroviral Therapy-Failure Patients in Liaoning Province, China. AIDS Res Hum Retroviruses 2022; 38:502-509. [PMID: 35229630 DOI: 10.1089/aid.2021.0079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
This study aimed to monitor the prevalence of HIV-1 drug resistance and risk factors associated with drug resistance in antiretroviral therapy (ART)-failure individuals in Liaoning Province, China. Plasma samples were collected from HIV-1-positive individuals who experienced ART failure in Liaoning Province between April 2018 and September 2019. Genotype resistance test was performed using an in-house assay on these collected samples. Factors associated with drug resistance were identified by logistic regression analysis. We collected a total of 468 ART-failure individuals, of which 256 were successfully included in the final study. Of these, the most predominant genotype was CRF01_AE, accounting for 77.73%. The resistance rate to any of the three classes of antiretroviral drugs (non-nucleoside reverse transcriptase inhibitors [NNRTIs], nucleoside reverse transcriptase inhibitors [NRTIs], and protease inhibitors [PIs]) was 64.84%. Among 256 ART-failure patients, 62.89% showed drug resistance to NNRTIs, 50.39% to NRTIs, and 3.13% to PIs. G190S (31.25%) and Y181C (25.78%) mutations were the most common NNRTIs resistance mutations. K65R (29.69%), M184V (28.52%) were the most common NRTIs resistance mutations. Factors associated with drug resistance included current ART regimen and viral load. The high drug resistance rate among ART-failure individuals in Liaoning Province needs more attention. Corresponding strategies for the risk factors associated with HIV drug resistance can better control and prevent the prevalence of resistance.
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Affiliation(s)
- Qianqian Wei
- Institute for Preventive Medicine of China Medical University, Shenyang, China
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Yan Zhao
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Yani Lv
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Xu Kang
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Shan Pan
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Shujie Yao
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
| | - Li Wang
- Institute for Preventive Medicine of China Medical University, Shenyang, China
- Institute for AIDS/STD Control and Prevention, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, China
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Xie YN, Zhu FX, Zhong YT, Chen YT, Gao Q, Lai XL, Liu JJ, Huang DD, Zhang YN, Chen X. Distribution characteristics of drug resistance mutations of HIV CRF01_AE, CRF07_BC and CRF08_BC from patients under ART in Ganzhou, China. J Antimicrob Chemother 2021; 76:2975-2982. [PMID: 34402512 DOI: 10.1093/jac/dkab296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/20/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Drug resistance mutation (DRM)-associated virological failure has become a critical issue for ART and the elimination of HIV. OBJECTIVES To investigate the distribution characteristics of DRMs of HIV CRF01_AE, CRF07_BC and CRF08_BC, the predominant subtypes in China. METHODS Patients receiving ART up to 31 August 2020 in Ganzhou in China were recruited. Full-length sequences of the HIV pol gene were amplified from patients with virological failure. DRMs and antiretroviral susceptibility were explored using the Stanford University HIV Drug Resistance Database HIVdb Program. RESULTS Overall, 279 of 2204 patients under ART were found to have virological failure. Nine HIV subtypes were identified among 211 sequences that were amplified successfully and CRF08_BC (37.0%), CRF01_AE (26.1%) and CRF07_BC (25.6%) were the most prevalent, with mutation frequencies of 44.9% (35/78), 52.7% (29/55) and 35.2% (19/54), respectively. The most common DRMs of these three subtypes were K103N and M184V, while the mutation frequencies of M41L, D67N, K70R, K101E, V106M, Y181C, K219E, H221Y and N348I were obviously different among subtypes. The resistance levels and frequencies for antiretroviral drugs for these three subtypes were similar and resistances to nevirapine, efavirenz, lamivudine and emtricitabine were the most frequently observed. Compared with CRF01_AE and CRF07_BC, CRF08_BC had higher proportions of DRMs for NRTIs and lower frequencies of resistance to NRTIs and NNRTIs. CONCLUSIONS The distribution characteristics of DRMs of HIV CRF01_AE, CRF07_BC and CRF08_BC were inconsistent and should be considered when selecting antiretroviral strategies, developing new drugs and controlling HIV strains containing DRMs.
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Affiliation(s)
- Ying-Na Xie
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Feng-Xiu Zhu
- Department of Laboratory, Ganzhou Centre for Disease Control and Prevention, Ganzhou, China
| | - You-Tian Zhong
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Ya-Ting Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Qian Gao
- Department of Laboratory, Ganzhou Centre for Disease Control and Prevention, Ganzhou, China
| | - Xiao-Ling Lai
- Department of Laboratory, Ganzhou Centre for Disease Control and Prevention, Ganzhou, China
| | - Jun-Jie Liu
- Department of Laboratory, Ganzhou Centre for Disease Control and Prevention, Ganzhou, China
| | - Dan-Dan Huang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Yu-Ning Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Xin Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
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9
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Engone-Ondo JD, Mouinga-Ondémé A, Lékana-Douki SE, Diané A, Mamimandjiami AI, Banga O, Ndong-Atome GR, Aghokeng AF. High rate of virological failure and HIV drug resistance in semi-rural Gabon and implications for dolutegravir-based regimen efficacy. J Antimicrob Chemother 2021; 76:1051-1056. [PMID: 33367796 DOI: 10.1093/jac/dkaa537] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/03/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The projected UNAIDS goal of ending AIDS by 2030 requires significant global efforts to improve current and future ART strategies. In this study, we assessed viral load (VL) suppression and acquired drug resistance, as well as future efficacy of dolutegravir-based combinations for patients living in semi-rural regions of Gabon. METHODS Eligible study participants were adults receiving ART and recruited between 2018 and 2019 in Franceville, Gabon. VL testing was conducted to assess VL suppression and HIV drug resistance (HIVDR) testing was performed to identify resistance mutations and assess their impact on ongoing and future ART regimens. RESULTS We recruited 219 participants overall. The median time on ART was 27 months and 216/219 participants were on first-line ART. VL suppression (VL < 1000 copies/mL) was 57.1% (95% CI 50.5-63.8) overall; 59.4% (51.4-67.5) and 52.2% (40.3-64.2) for women and men, respectively. The overall prevalence of HIVDR was 21.9% among the study population and 67.2% among those who failed ART. Presence of both NRTI and NNRTI mutations was found in 84.6% of sequences with drug resistance mutations, and full activity of a dolutegravir-based first-line regimen including tenofovir disoproxil fumarate/lamivudine/dolutegravir was expected only for 5/39 patients with a resistant virus. CONCLUSIONS This study shows a very low rate of VL suppression in a semi-rural context in Africa. Moreover, the high burden of HIVDR has affected both current and newly recommended ART strategies. Better management of ART in resource-limited settings is still a challenging ambition.
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Affiliation(s)
- Jéordy D Engone-Ondo
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Augustin Mouinga-Ondémé
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Sonia E Lékana-Douki
- Unité des Émergences Virales, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Abdoulaye Diané
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Antony I Mamimandjiami
- Unité des Infections Rétrovirales et Pathologies Associées, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Octavie Banga
- Unité des Émergences Virales, Centre International de Recherches Médicales de Franceville (CIRMF), BP 769 Franceville, Gabon
| | - Guy-Roger Ndong-Atome
- Département de Biochimie, Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), BP 901 Franceville, Gabon
| | - Avelin F Aghokeng
- Unité Mixte de Recherche sur le VIH et les Maladies Infectieuses Associées, (CIRMF-SSM), Libreville, Gabon.,UMR IRD 224-CNRS 5290-MIVEGEC - Université de Montpellier, Montpellier, France
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10
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Ekollo Mbange A, Malick Diouara AA, Diop-Ndiaye H, Diaw Diouf NA, Ngom-Ngueye NF, Ndiaye Touré K, Dieng A, Lô S, Fall M, Fon Mbacham W, Mboup S, Touré-Kane C. High HIV-1 Virological Failure and Drug Resistance among Adult Patients Receiving First-Line ART for At least 12 Months at a Decentralized Urban HIV Clinic Setting in Senegal before the Test-and-Treat. Infect Dis (Lond) 2021; 14:11786337211014503. [PMID: 34025122 PMCID: PMC8120520 DOI: 10.1177/11786337211014503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 04/05/2021] [Indexed: 11/21/2022] Open
Abstract
Background: The feasibility of antiretroviral therapy (ART) monitoring remains problematic in decentralized HIV clinic settings of sub-Saharan Africa. We assessed the rates and correlates of HIV-1 virological failure (VF) and drug resistance (DR) in 2 pre-test-and-treat urban clinic settings of Senegal. Methods: Consenting HIV-1-infected adults (⩾18 years) receiving first-line ART for ⩾12 months were cross-sectionally enrolled between January and March 2015, at the referral outpatient treatment center of Dakar (n = 151) and decentralized regional hospital of Saint-Louis (n = 127). In the 12 months preceding plasma specimens’ collection patients at Saint-Louis had no viral load (VL) testing. Significant predictors of VF (VL ⩾ 1000 copies/ml) and DR (clinically relevant mutations) were determined using binomial logistic regression in R software. Results: Of the 278 adults on EFV-/NVP-based regimens, 32 (11.5% [95%CI: 8.0-15.9]) experienced VF. Failing and non-failing patients had comparable median time [interquartile] on ART (69.5 [23.0-89.5] vs 64.0 [34.0-99.0] months; P = .46, Mann–Whitney U-test). Of the 27 viraemic isolates successfully genotyped, 20 (74.1%) carried DR mutations; most frequent were M184VI (55.6%), K103N (37.1%), thymidine analog mutations (29.6%), Y181CY (22.2%). The pattern of mutations did not always correspond to the ongoing treatment. The adjusted odds of VF was significantly associated with the decentralized clinic site (P < .001) and CD4 < 350 cells/mm3 (P < .006). Strong correlates of DR also included Saint-Louis (P < .009), CD4 < 350 cells/mm3 (P <. 001), and nevirapine-based therapies (comparator: efavirenz-based therapies; P < .027). In stratification analyses by site, higher rate of VF at Saint-Louis (20.5% [95%CI: 13.8-28.5] vs 4.0% [95%CI: 1.5-8.5] in Dakar) was associated with nevirapine-based therapies (OR = 3.34 [1.07-11.75], P = .038), self-reported missing doses (OR = 3.30 [1.13-10.24], P = .029), and medical appointments (OR = 2.91 [1.05-8.47], P = .039) in the last 1 and 12 months(s), respectively. The higher rate of DR at Saint-Louis (12.9% [95%CI: 7.6-20.1] vs 2.7% [95%CI: 0.7-6.7] in Dakar) was associated with nevirapine-based therapies (OR = 5.13 [1.12-37.35], P = .035). Conclusion: At decentralized urban settings, there is need for enhanced virological monitoring and adherence support. HIV programs in Senegal should intensify early HIV diagnosis for effective test-and-treat. These interventions, in addition to the superiority of efavirenz-based therapies provide a favorable framework for transitioning to the recommended potent drug dolutegravir, thereby ensuring its long-term use.
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Affiliation(s)
- Aristid Ekollo Mbange
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal.,The Biotechnology Center and Department of Biochemistry, University of Yaoundé I, Yaoundé, Cameroon.,Laboratoire de Bactériologie-Virologie, Centre Hospitalier Universitaire, Aristide Le Dantec/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Abou Abdallah Malick Diouara
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal.,Département de Génie Chimique et de Biologie Appliquée, Ecole Supérieure Polytechnique/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Halimatou Diop-Ndiaye
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal.,Laboratoire de Bactériologie-Virologie, Centre Hospitalier Universitaire, Aristide Le Dantec/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Ndèye Aminata Diaw Diouf
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal.,Laboratoire de Bactériologie-Virologie, Centre Hospitalier Universitaire, Aristide Le Dantec/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | | | | | - Ahmed Dieng
- Centre de Traitement Ambulatoire, Centre Hospitalier Universitaire de Fann, Dakar, Sénégal
| | - Seynabou Lô
- Hôpital Régional de Saint-Louis, Saint-Louis, Sénégal
| | - Mamadou Fall
- Laboratoire de Bactériologie-Virologie, Centre Hospitalier Universitaire, Aristide Le Dantec/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Wilfred Fon Mbacham
- The Biotechnology Center and Department of Biochemistry, University of Yaoundé I, Yaoundé, Cameroon
| | - Souleymane Mboup
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal
| | - Coumba Touré-Kane
- The Institute for Health Research, Epidemiological Surveillance and Training (IRESSEF), Diamniadio, Senegal.,Laboratoire de Bactériologie-Virologie, Centre Hospitalier Universitaire, Aristide Le Dantec/Université Cheikh Anta Diop de Dakar, Dakar, Sénégal.,Laboratoire de Bactériologie-Virologie CHNU Dalal Jam, Dakar, Sénégal
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11
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Gelaw B, Mulatu G, Tesfa G, Marew C, Chekole B, Alebel A. Magnitude and associated factors of virological failure among children on ART in Bahir Dar Town public health facilities, Northwest Ethiopia: a facility based cross-sectional study. Ital J Pediatr 2021; 47:84. [PMID: 33823890 PMCID: PMC8025328 DOI: 10.1186/s13052-021-01030-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/15/2021] [Indexed: 11/25/2022] Open
Abstract
Background Despite the rapid scale-up of antiretroviral therapy, virologic failure has become global public health concern and challenge, especially in developing countries. Viral load monitoring is an important approach to identify treatment failure and develop public health interventions in children receiving antiretroviral therapy. Thus, this study aims to assess the magnitude and associated factors of virological failure among children on antiretroviral therapy. Methods A facility-based cross-sectional study was conducted among 399 HIV-positive children on antiretroviral therapy from 2016 to 2019 in Bahir Dar Town public health facilities. Data were extracted from children’s charts using a standardized data extraction tool, adapted from ART intake and follow-up forms. Data were entered using Epi-Data Version 3.1, and analyzed using SPSS Version 25. Bivariable and multivariable binary logistic regression models were done to identify factors associated with virological failure. Variables with p-values < 0.25 were fitted into the multivariable analysis. Finally, variables with p-values <0.05 were considered as statistically significant factors. Results The period prevalence of virological failure was found to be 14.8% (95% CI: 11.5–19.3%). Opportunistic infections (AOR = 2.19, CI: 1.13–4.25), history of treatment interruption and restart (AOR = 2.21, CI: 1.09–4.54), younger age (AOR = 2.42, CI: 1.02–5.74), poor/fair ART adherence (AOR = 2.19, CI: 1.05–4.57), and advanced baseline WHO clinical staging (AOR = 2.32, CI: 1.14–4.74) were found to be factors significantly associated with virological failure. Conclusion The magnitude of virological failure among HIV-infected children remained high. Children with poor/fair ART adherence, history of treatment interruption, advanced baseline WHO clinical staging, younger age, and opportunistic infections were significantly associated with virologic failure. Thus, special attention should be given to children who had poor/fair ART adherence and presenting with opportunistic infections.
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Affiliation(s)
- Belete Gelaw
- School of Nursing, College of Medicine and Health Sciences, Wolaita Sodo University, Sodo, Ethiopia.
| | - Getasew Mulatu
- College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Getasew Tesfa
- College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Chalie Marew
- College of Medicine and Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Bogale Chekole
- College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Animut Alebel
- College of Health Science, Debre Markos University, Debre Markos, Ethiopia.,School of Public Health, Faculty of Health, University of Technology Sydney, Ultimo, NSW, Australia
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12
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Getawa S, Fentahun A, Adane T, Melku M. Antiretroviral Treatment Failure and Associated Factors Among HIV-Infected Children on Antiretroviral Therapy: A Retrospective Study. HIV AIDS-RESEARCH AND PALLIATIVE CARE 2021; 13:229-237. [PMID: 33664596 PMCID: PMC7921627 DOI: 10.2147/hiv.s294046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/08/2021] [Indexed: 11/23/2022]
Abstract
Background HIV/AIDS-associated morbidity and mortality have reduced since the introduction of antiretroviral therapy (ART). Treatment failure is one of the causes of mortality, morbidity, and the development of drug-resistant viral strains. Therefore, this research aims to assess the prevalence and associated factors of treatment failure among children with HIV/AIDS on antiretroviral therapy attending the University of Gondar Specialized Referral Hospital, Northwest Ethiopia. Methods A retrospective study was conducted on 200 children registered for ART from 2005 to 2017. Data regarding patients’ socio-demographic, baseline clinical characteristics, and treatment-related information were collected through a review of their medical records. Data were entered into Epi-info version 3.5.3 and analyzed using statistical package for social sciences (SPSS) version 21 software. To summarize characteristics of the study participant’s descriptive statistics were done. Bivariable and multivariable binary logistic regression were fitted to identify factors associated with treatment failure. The odds ratio and 95% confidence interval (CI) were calculated to assess the strength of the association and P-value<0.05 in the multivariable regression was considered as statistically significant. Results The prevalence of ART failure was 12.5% (95% CI: 7.88, 17.12), clinical failure was the most common followed by immunologic failure with only a small proportion having both clinical and immunologic failure. The mean time to develop treatment failure after initiation of the first-line regimen was 22.28 ± 24.00 months. Being male (AOR= 3.15; 95% CI: 1.18–8.39), co-infected with tuberculosis (TB) at baseline (AOR= 2.37; 95% CI: 1.23–8.84), being on ART for a long period (>36 months) (AOR= 1.01; 95% CI: 1.34–2.89), and regimen change (AOR=9.22; 95% CI: 3.36–25.03) were factors of ART failure. Conclusion In this study, there is significant treatment failure among HIV-infected children. Having co-infection, being on ART for a long period, regimen change, and being male were found to be independent factors of treatment failure in children. Therefore, timely identification and monitoring of ART failure should be necessary to enhance the benefit and to prevent further complications. Prophylaxis for opportunistic infections such as co-trimoxazole preventive therapy should continue to recover the immunological status of the child.
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Affiliation(s)
- Solomon Getawa
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Abaynesh Fentahun
- Department of Clinical Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tiruneh Adane
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Mulugeta Melku
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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13
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Nasomsong W, Phokaphol K, Changpradub D. First-Line Antiretroviral Regimen Failure and Determinants in an Urban HIV Clinic at Phramongkutklao Hospital, Bangkok, Thailand: 20 Years Experience. HIV AIDS-RESEARCH AND PALLIATIVE CARE 2021; 13:261-269. [PMID: 33692637 PMCID: PMC7939509 DOI: 10.2147/hiv.s295512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/26/2021] [Indexed: 11/23/2022]
Abstract
Purpose HIV treatment involves antiretroviral therapy (ART) endeavoring to suppress viral load to an undetectable level. Virologic failure occurs when ART fails to suppress and sustain an individual’s viral load to less than 200 copies/mL after 6 months of therapy. In Thailand, the data among first-line antiretroviral regimen failure and determinants remains limited, especially in urban HIV clinics. We aimed to demonstrate factors of first-line antiretroviral regimen failures in an urban HIV/AIDS clinic at Phramongkutklao Hospital. Patients and Methods A nested case control 1:4 study was conducted. Data were collected from the electronic patient database among naïve people living with HIV/AIDS (PLWHA), aged ≥18 years and receiving ART continuously for at least 2 years at Phramongkutklao Hospital from 1 January 2000 to 31 December 2019. Multiple logistic regression was used to identify the determinants of virologic failure. Adjusted HRs (AHRs) with 95% CIs were used to declare statistical significance. Results Of 200 PLWHA included in the study, 40 participants experienced HIV virologic failure. The median time after starting ART to virologic failure was 24 months (IQR 7–96.0). Univariate and multivariate analysis showed significant factors affecting first-line antiretroviral regimen failure included being female (37.5 vs 26.88%, adjusted odds ratio 5.08 [1.05–24.6, p-value 0.043], age ≤40 yr. (62.5 vs 49.6%, adjusted odds ratio 4.59 [1.47–14.37], p-value 0.009), CD4+count ≤200 cell/µL (77.5 vs 52.5%, adjusted odds ratio 4.83 [1.28–18.9], p value 0.02), tuberculosis (42.5 vs 7.5%, adjusted odds ratio 8.66 [2.37–31.56], p value <0.001) and initiation of ART at CD4+ count <350 cell/µL (72.5 vs 48.13%, adjusted odds ratio 31.36 [6.51–151.22], p value <0.001). Estimated prevalence of virologic failure in Phramongkutklao Hospital was 5.34%. Conclusion Our study revealed factors favoring virologic failure included being female, younger age, CD4+ count <200 cells/µL, tuberculosis and initiation of ART at CD4+ count <350 cell/µL. Multidisciplinary HIV comprehensive care teams should encourage patient adherence and support patients along HIV continuum of care to prevent virologic failure and drug resistance, especially among patients initiating ART at low CD4+ count and tuberculosis co-infection.
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Affiliation(s)
- Worapong Nasomsong
- Division of Infectious Diseases, Department of Internal Medicine, Phramongkutklao Hospital, Bangkok, Thailand
| | - Kwonchit Phokaphol
- Division of Infectious Diseases, Department of Internal Medicine, Phramongkutklao Hospital, Bangkok, Thailand
| | - Dhitiwat Changpradub
- Division of Infectious Diseases, Department of Internal Medicine, Phramongkutklao Hospital, Bangkok, Thailand
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Lailulo Y, Kitenge M, Jaffer S, Aluko O, Nyasulu PS. Factors associated with antiretroviral treatment failure among people living with HIV on antiretroviral therapy in resource-poor settings: a systematic review and metaanalysis. Syst Rev 2020; 9:292. [PMID: 33308294 PMCID: PMC7733304 DOI: 10.1186/s13643-020-01524-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/08/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Despite the increase in the number of people accessing antiretroviral therapy (ART), there is limited data regarding treatment failure and its related factors among HIV-positive individuals enrolled in HIV care in resource-poor settings. This review aimed to identify factors associated with antiretroviral treatment failure among individuals living with HIV on ART in resource-poor settings. METHODS We conducted a comprehensive search on MEDLINE (PubMed), Excerpta Medica Database (EMBASE), Cochrane Central Register of Controlled Trials (CENTRAL), World Health Organization's (WHO's) library database, and Latin American and Caribbean Health Sciences Literature (LILACS). We included observational studies (cohort, case-control, and cross-sectional studies) where adolescents and adults living with HIV were on antiretroviral treatment regardless of the ART regimen. The primary outcomes of interest were immunological, virological, and clinical failure. Some of the secondary outcomes were mm3 opportunistic infections, WHO clinical stage, and socio-demographic factors. We screened titles, abstracts, and the full texts of relevant articles in duplicate. Disagreements were resolved by consensus. We analyzed the data by doing a meta-analysis to pool the results for each outcome of interest. RESULTS Antiretroviral failure was nearly 6 times higher among patients who had poor adherence to treatment as compared to patients with a good treatment adherence (OR = 5.90, 95% CI 3.50, 9.94, moderate strength of evidence). The likelihood of the treatment failure was almost 5 times higher among patients with CD4 < 200 cells/mm3 compared to those with CD4 ≥ 200 CD4 cells/mm3 (OR = 4.82, 95% CI 2.44, 9.52, low strength of evidence). This result shows that poor adherence and CD4 count below < 200 cells/mm3 are significantly associated with treatment failure among HIV-positive patients on ART in a resource-limited setting. CONCLUSION This review highlights that low CD4 counts and poor adherence to ART were associated to ART treatment failure. There is a need for healthcare workers and HIV program implementers to focus on patients who have these characteristics in order to prevent ART treatment failure. SYSTEMATIC REVIEW REGISTRATION The systematic review protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO), registration number: 2019 CRD42019136538.
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Affiliation(s)
- Yishak Lailulo
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Marcel Kitenge
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Médecins Sans Frontières (MSF), Eshowe, KwaZulu Natal South Africa
| | - Shahista Jaffer
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Omololu Aluko
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Peter Suwirakwenda Nyasulu
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Division of Epidemiology & Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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15
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Determinants of Virologic Failure among Adult HIV Patients on First-Line Antiretroviral Therapy at Waghimra Zone, Northern Ethiopia: A Case-Control Study. ADVANCES IN PUBLIC HEALTH 2020. [DOI: 10.1155/2020/1929436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction. The primary goal of antiretroviral therapy (ART) is to reduce the viral load in HIV-infected patients to promote quality of life, as well as to reduce HIV-related morbidity and mortality. A high rate of virologic failure was reported in Waghimra Zone, Northwest Ethiopia, in viral load assessment conducted among HIV-infected patients on ART in the Amhara region. However, there is limited evidence on the determinants of virological failure in the study area. This study aimed to identify the determinants of virological failure among HIV-infected patients on antiretroviral therapy in Waghimra zone, Northern Ethiopia, 2019. Methods. An institutional-based unmatched case-control study was conducted from May 21 to June 30, 2019. Cases were people living with HIV (PLHIV) on ART who had already experienced virological failure; controls were those without virological failure. Data were extracted from 92 cases and 184 controls through chart review using a pretested and structured checklist. The data were entered using Epi Info version 7 and exported to SPSS version 20 for analysis. A multivariate logistic regression analysis was carried out to identify factors associated with virological failure, and variables with a P value <0.05 were considered statistically significant. Results. This study revealed that poor adherence to ART (adjusted odds ratio (AOR) = 4.24, 95% confidence interval (CI): 2.17, 8.31), taking ART for longer than five years (AOR = 3.11, 95% CI: 1.17, 8.25), having drug toxicity (AOR = 3.34, 95% CI: 1.54, 7.23), age of PLHIV ≥ 35 years (AOR = 2.45, 95% CI: 1.29,4.64), and recent CD4 count <200 cells/mm³ (AOR = 3.06, 95% CI: 1.52, 6.13) were factors associated with virologic failure. Conclusion and Recommendation. This study showed that poor adherence to treatment, longer duration on ART, experiencing drug toxicity, older age, and recent CD4 <200 cell/mm³ are factors that increase the risk of virologic failure.
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Nega J, Taye S, Million Y, Rodrigo C, Eshetie S. Antiretroviral treatment failure and associated factors among HIV patients on first-line antiretroviral treatment in Sekota, northeast Ethiopia. AIDS Res Ther 2020; 17:39. [PMID: 32650796 PMCID: PMC7350666 DOI: 10.1186/s12981-020-00294-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/02/2020] [Indexed: 11/17/2022] Open
Abstract
Background Antiretroviral treatment has played a pivotal role in the reduction of HIV/AIDS-related morbidity and mortality. However, treatment options can be impaired by the development of antiretroviral treatment failure. Regular monitoring of the Human Immunodeficiency Virus treatment outcome via viral load tests is the key approach. There is a scarcity of information about HIV treatment failure and risk factors in the study area. Therefore, the study was aimed to assess antiretroviral treatment failure and associated factors among patients on first-line antiretroviral treatment at Tefera Hailu Memorial Hospital, Sekota, northeast Ethiopia. Methods A hospital-based cross-sectional study was conducted on 295 patients on first-line antiretroviral treatment from Nov. 2018 to Apr. 2019. Socio-demographic and clinical variables were collected using a pretested questionnaire, and blood specimen was collected for PCR viral load and CD4 + cell count estimation. Data were entered into Epi-Info and exported to SPSS for analysis. A binary logistic regression model was used to identify associated factors, and P value < 0.05 was considered as statistically significant. Results Of the 295 subjects on first-line ART, 49 (16.6%) and 18 (6.1%) experienced virological and immunological failures, respectively. The failure of the former was associated with poor adherence (AOR: 6.367, P < 0.001), CD4 + count < 500 cells/µL (AOR: 4.78, P = 0.031) and shorter (6–24 months) duration on ART (AOR: 0.48, P = 0.048), while poor treatment adherence (AOR: 11.51, P = 0.012) and drug interruption (AOR: 6.374, P = 0.039) were the independent risk factors for latter. Immunological tests to predict virological failures showed as sensitivity, specificity, PPV, and NPV were 20.4%, 96.7%, 55.5%, and 86.0%, respectively. Conclusions The rate of ART failure was considerably high. Poor adherence, low CD4 + count, prolonged ART, and drug interruption were found to be the most predictor variables for virological and immunological failures. The discrimination power of the immunological parameter was low in comparison to virological measurements as standard methods. Therefore, the study highlighted the need for more attention and efforts to curb associated factors and maximize virological tests for monitoring treatment failures.
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Agegnehu CD, Merid MW, Yenit MK. Incidence and predictors of virological failure among adult HIV patients on first-line antiretroviral therapy in Amhara regional referral hospitals; Ethiopia: a retrospective follow-up study. BMC Infect Dis 2020; 20:460. [PMID: 32611405 PMCID: PMC7329399 DOI: 10.1186/s12879-020-05177-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 06/18/2020] [Indexed: 11/15/2022] Open
Abstract
Background Although the United Nations program on HIV/AIDS 90–90-90-targets recommends achieving 90% of viral suppression for patients on first-line antiretroviral therapy by 2020, virological failure is still high and it remains a global public health problem. Therefore, assessing the incidence and predictors of virological failure among adult HIV patients on first-line ART in Amhara regional referral hospitals, Ethiopia is vital to design appropriate prevention strategies for treatment failure and preventing the unnecessary switching to second-line regimens. Method An institution-based retrospective follow-up study was conducted on 490 adult HIV patients. The simple random sampling technique was used, and data were entered into Epi data Version 4.2.0.0 and was exported to Stata version 14 for analysis. The proportional hazard assumption was checked, and the Weibull regression was fitted. Cox-Snell residual was used to test the goodness of fit, and the appropriate model was selected by AIC/BIC. Finally, an adjusted hazard ratio with a 95% CI was computed, and variables with P-value < 0.05 in the multivariable analysis were taken as significant predictors of virological failure. Results The overall incidence rate of virological failure was 4.9 events per 1000 person-month observations (95%CI: 3.86–6.38). Users of CPT (AHR = 0.55, 95%CI: 0.31–0.97), poor adherence (AHR = 5.46, 95%CI: 3.07–9.74), CD4 Count <=200 cells/mm3 (AHR = 3.9, 95%CI: 1.07–13.9) and 201–350 cells/mm3 (AHR 4.1, 95%CI: 1.12–15) respectively, and NVP based first line drug regimen (AHR = 3.53, 95%CI: 1.73–7.21) were significantly associated with virological failure. Conclusion The incidence rate of virological failure was high. CPT, poor adherence, low baseline CD4 count and NVP based first-line drug regimen were independent risk factors associated with virological failure. Therefore, strengthening HIV care intervention and addressing these significant predictors is highly recommended in the study setting.
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Affiliation(s)
- Chilot Desta Agegnehu
- School of Nursing, College of Medicine and Health Sciences and Comprehensive Specialized Hospital, University of Gondar, Gondar, Ethiopia.
| | - Mehari Woldemariam Merid
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Melaku Kindie Yenit
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Negash H, Welay M, Legese H, Adhanom G, Mardu F, Tesfay K, Gebrewahd A, Berhe B. Increased Virological Failure and Determinants Among HIV Patients on Highly Active Retroviral Therapy in Adigrat General Hospital, Northern Ethiopia, 2019: Hospital-Based Cross-Sectional Study. Infect Drug Resist 2020; 13:1863-1872. [PMID: 32606835 PMCID: PMC7308120 DOI: 10.2147/idr.s251619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/12/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND In Ethiopia, despite the integrated implementation of antiretroviral therapy since 2005, the human immunodeficiency virus remains a public health concern. Managing and detecting antiretroviral treatment response is important to monitor the effectiveness of the therapy for individuals who experience failed virological response. An increased viral load indicating drug resistance or rapid progression of viral replication needs early detection. Hence, we aimed to assess the prevalence and determinants of virological response among human immunodeficiency virus-infected patients on highly active antiretroviral therapy. METHODS A hospital-based cross-sectional study was conducted in Adigrat General Hospital from September to December, 2019, on a total of 422 participants. An interviewer-based questionnaire was used for data collection. About 4 mL of venous blood was collected for viral load determination. Patient records were reviewed for the previous results of CD4+ T cell counts. STATA 14 software was used to analyze the data. Descriptive data were presented using tables and figures. Bivariate and multivariate analyses were performed. A p-value < 0.05 was considered a statistically significant association. RESULTS The mean age of study participants was 39 years (SD ±12.2 years), of which 66.7% of them were females. The overall prevalence of virological failure was 12.47% (49/393). Moreover, the prevalence of virological failure was observed to be higher among tuberculosis co-infected individuals (26%) compared with the mono-infected HIV patients (6.3%). The odds of virological failure were higher among obese and undernourished individuals, tuberculosis co-infected, and individuals with the failure of immune reconstitution. CONCLUSION There was a high rate of virological failure among the study participants. Tuberculosis infection increased the rate of failure. There should be consistent assessment of viral load testing to determine the status of virological response for appropriate drug switching to clients. HIV patients with virological failure are recommended for switching of the antiretroviral therapy.
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Affiliation(s)
- Hadush Negash
- Unit of Medical Microbiology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Miglas Welay
- Department of Midwifery, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Haftom Legese
- Unit of Medical Microbiology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Gebre Adhanom
- Unit of Medical Microbiology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Fitsum Mardu
- Unit of Medical Parasitology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Kebede Tesfay
- Unit of Medical Parasitology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Aderajew Gebrewahd
- Unit of Medical Microbiology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
| | - Brhane Berhe
- Unit of Medical Parasitology, Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Adigrat University, Tigrai, Ethiopia
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Huang X, Xu L, Sun L, Gao G, Cai W, Liu Y, Ding H, Wei H, Ma P, Wang M, Liu S, Chen Y, Chen X, Zhao Q, Yu J, Song Y, Chen H, Wu H, Qin S, Li L. Six-Year Immunologic Recovery and Virological Suppression of HIV Patients on LPV/r-Based Second-Line Antiretroviral Treatment: A Multi-Center Real-World Cohort Study in China. Front Pharmacol 2019; 10:1455. [PMID: 31920648 PMCID: PMC6917650 DOI: 10.3389/fphar.2019.01455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 11/13/2019] [Indexed: 11/13/2022] Open
Abstract
The World Health Organization guidelines recommend lopinavir/ritonavir (LPV/r) as a second-line antiretroviral therapy (ART) for HIV-infected adults in middle-income and low-income countries as a protease inhibitor boost based on clinical trials; however, the real-world safety and efficacy remain unknown. Therefore, we conducted a large-scale, multicenter retrospective cohort study to evaluate the efficacy and safety of LPV/r-based ART among HIV-infected adults in China in whom first-line therapy failed. The data were obtained from a national database covering 17 clinics in China for six years of follow-up from 2009 to 2016. Failure of first-line treatment was determined according to a viral load at least 400 copies/ml at week 48, non-completers at week 48 for any reason, and those who switched ART before week 48 for any reason such as side effects. Treatment effectiveness was assessed by the rate of CD4+T cell recovery, defined as >500 cells/mm3, and the proportion of patients achieving viral suppression, defined as <400 or <50 copies/ml according to the methods used during treatment. Safety was assessed by rates of LPV/r-related adverse events (AEs), including lipid disorder, severe abnormal liver function, myelosuppression, and renal function. Between 2009 and 2016, 1196 participants (median, 36 years old; IQR, 30–43 years) were ultimately enrolled. All patients had been on LPV/r-based second-line ART treatment for more than one year after failure of any first-line ART regimen. Overall CD4+T cell counts increased from 138 cells/mm3 to 475 cells/mm3 and 37.2% of all participants reached CD4 recovery. Viral suppression rates dramatically increased at the end of the first year (<400 copies/ml, 88.8%; <50 copies/ml, 76.7%) and gradually increased during follow-up (<400 copies/ml, 95.8%; <50 copies/ml, 94.4%). The most frequently reported AEs were LPV/r-induced lipid disorders with no obvious increase on LDL-C at follow-up visits. This is the first real-world LPV/r-based second-line treatment study to cover such a large population in China. These results provide strong clinical evidence that LPV/r-based second-line ART is effective in increasing CD4+T cell counts and viral suppression rates with tolerable side effects in HIV-infected adults in China in whom first-line treatment had failed.
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Affiliation(s)
- Xiaojie Huang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Liumei Xu
- Department of Clinical AIDS Research, the Third People's Hospital of Shenzhen, Shenzhen, China
| | - Lijun Sun
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Guiju Gao
- Clinical and Research Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Weiping Cai
- InInfectious Diseases Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yanfen Liu
- Center for Infectious Diseases, the Fourth People's Hospital of Nanning, Nanning, China
| | - Haibo Ding
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hongxia Wei
- Department of Infectious Disease, The Second Hospital of Nanjing, Affiliated Nanjing Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ping Ma
- Department of Infectious Disease, the Affiliated Second Peoples' Hospital of the Nankai University, Tianjin, China
| | - Min Wang
- Institute of HIV/ AIDS, The First Hospital of Changsha, Changsha, China
| | - Shuiqing Liu
- Department of Infectious Diseases, Guiyang Public Health Clinical Center, Guiyang, China
| | - Yaokai Chen
- Division of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
| | - Xiaohong Chen
- Department of Infectious Diseases, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qingxia Zhao
- Department of Infectious Diseases, Henan Infectious Disease Hospital, Zhengzhou, China
| | - Jianhua Yu
- Department of Infectious Diseases, XIXI Hospital of Hangzhou, Hangzhou, China
| | - Yuxia Song
- Department of Infectious Diseases, Xinjiang Uygur Autonomous Region Sixth People's Hospital, Xinjiang, China
| | - Hui Chen
- School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Hao Wu
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Shanfang Qin
- Department of Infectious Diseases, Longtan Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, China
| | - Linghua Li
- InInfectious Diseases Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
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Clinical and immunological failure among HIV-positive adults taking first-line antiretroviral therapy in Dire Dawa, eastern Ethiopia. BMC Public Health 2019; 19:771. [PMID: 31208459 PMCID: PMC6580499 DOI: 10.1186/s12889-019-7078-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 05/30/2019] [Indexed: 11/27/2022] Open
Abstract
Background Access to antiretroviral therapy (ART) in Ethiopia has been scaled up since the introduction of the service in 2003. Free ART was launched in 2005, resulting in fewer new human immunodeficiency virus (HIV) infections and deaths from acquired immunodeficiency syndrome (AIDS). However, immunological and clinical failures for first-line ART due to poor adherence and other factors have received less attention. Thus, this study aims to determine the magnitude and associated factors of clinical and immunological failure among HIV-positive adults after six months of first-line ART in Dire Dawa, Eastern Ethiopia. Methods A facility-based cross-sectional study was conducted using secondary data of patients on ART in all health facilities providing ART services in Dire Dawa. A total of 949 samples were collected. The data were entered into Epidata version 3.02, and the analysis was performed using SPSS version 16.0. Univariate and multivariate analyses were performed to determine the magnitude of clinical and immunological failure and identify factors significantly associated with the outcome variable. Results The magnitude of clinical and immunological failure was 22.7% (n = 215). Of these, 33 (15%) patients were switched to second-line ART. CD4 count ≤100 cells/mm3 (AOR: 1.78, 95% CI: 1.18–2.69), poor adherence (AOR: 2.5, 95% CI: 1.19–5.25), restarting after interruption of ART (AOR: 1.93, 95% CI: 1.23–3.07), regimen change (AOR: 1.50, 95% CI: 1.05–2.15), ambulatory/bedridden functional status at the last visit on ART (AOR: 2.41, 95% CI: 1.22–4.75) and patients who died (AOR: 3.94, 95% CI: 1.64–9.45) had higher odds of failure. Conclusion The magnitude of clinical and immunological failure was high. To curb this problem, initiation of ART before the occurrence of severe immune suppression, early detection and management of failure and improved adherence support mechanisms are recommended. Restarting treatment after interruption and regimen changes-should-be-made-cautiously.
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Ahmed M, Merga H, Jarso H. Predictors of virological treatment failure among adult HIV patients on first-line antiretroviral therapy in Woldia and Dessie hospitals, Northeast Ethiopia: a case-control study. BMC Infect Dis 2019; 19:305. [PMID: 30943903 PMCID: PMC6448227 DOI: 10.1186/s12879-019-3924-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/20/2019] [Indexed: 11/16/2022] Open
Abstract
Background Virological treatment failure is a problem that a Human Immune Virus patient faces after starting treatment due to different factors. However, there were few studies done on the predictors of virological treatment failure among adult patients on first-line antiretroviral therapy in Ethiopia in general, and no study was done in the study area in particular. Therefore, the aim of the study was to identify predictors of virological treatment failure among adult patients on first-line antiretroviral therapy in Woldiya and Dessie Hospitals, Northeast Ethiopia. Method Hospital based case–control study was conducted in Woldia and Dessie Hospitals from from 12 August 2016–28 February 2018 on 154 cases and 154 controls among adult patients on first-line antiretroviral treatment. All cases were included and comparable controls were selected using stratified random sampling technique. Data were collected by document review using checklists and entered into Epidata version 3.1 and analyzed by SPSS version 21. Multivariable logistic regression analysis was done to identify the independent predictors of virological treatment failure. Results In this study, statistically higher odds of virological failure was observed among patients who had current CD4 T-cell count of < 200 mm3 (AOR = 2.4, 95% CI: 1.35, 4, 18) compared withCD4 T-cell count of > 200 mm3, current body mass index(BMI) < 16 kg/m2 (AOR = 4.2, 95% CI:1.85, 9.51) compared with BMI > 18.5 kg/m2, BMI between 16 and 18.5 kg/m2 (AOR = 3.72, 95% CI: 1.75, 7.92) versus BMI > 18.5 kg/m2, poor adherence to antiretroviral therapy (AOR = 5.4, 95% CI: 2.95, 9.97) compared with good adherence. Conclusion This study showed that low current CD4 T-cell count and body mass index, as well as poor adherence for ART treatment predicts virological failure. Therefore, deliberate efforts are urgently needed in HIV care through improving their nutritional status by enhancing nutritional education and support, and by strengthening enhanced adherence counseling.
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Affiliation(s)
- Mohammed Ahmed
- Department of Public Health, Woldia University, Woldia, Ethiopia.
| | - Hailu Merga
- Department of Epidemiology, Institute of health, Jimma University, Jimma, Ethiopia
| | - Habtemu Jarso
- Department of Epidemiology, Institute of health, Jimma University, Jimma, Ethiopia
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Effect of schistosomiasis on the outcome of patients infected with HIV-1 starting antiretroviral therapy in rural Tanzania. PLoS Negl Trop Dis 2018; 12:e0006844. [PMID: 30332404 PMCID: PMC6205655 DOI: 10.1371/journal.pntd.0006844] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 10/29/2018] [Accepted: 09/13/2018] [Indexed: 01/04/2023] Open
Abstract
Background It has been hypothesized that schistosomiasis negatively influences immune reconstitution in people living with HIV starting antiretroviral therapy (ART). In this study, we investigated the effect of schistosomiasis on the course of HIV infection in patients starting ART in a rural part of Tanzania. Methodology Retrospective study including patients prospectively enrolled in a HIV cohort in Ifakara, south-central Tanzania between January 1, 2013 and April 1, 2015. Schistosomal circulating anodic antigen (CAA) was assessed in pre-ART cryopreserved plasma. Regression models were utilized to estimate the effect of CAA positivity on virological and immunological failure and a composite outcome of death/loss to follow-up (LFU). Principal findings At ART-initiation 19.1% (88/461) of patients were CAA-positive. A tendency of higher CD4 increases was seen in CAA-positive patients (+182 cells/μl, interquartile range (IQR), 87–285 cells/μl) compared to CAA-negative patients (+147 cells/μl, IQR, 55–234 cells/μl, p = 0.09) after 10 months of follow-up. After adjustment for baseline risk factors, CAA-positivity showed no association with virological or immunological failure. In CAA-positive patients, 22.7% (20/88) died or were LFU, compared to 29.5% (110/373) of CAA-negative patients (hazard ratio (HR): 0.76, 95% confidence interval (CI), 0.47–1.22, p = 0.25). After adjustment for age, sex, body mass index, educational attainment, WHO-stage, tuberculosis status, and year of ART initiation, CAA-positivity showed a trend of a decreased hazard of death/LFU (HR: 0.58, 95% CI: 0.32–1.05, p = 0.07), while CD4 count at baseline (HR: 0.86, 95% CI: 0.76–1.00, p = 0.02) and MXD (sum of eosinophils, basophils, and monocytes counts) >1,100 cells/μl (HR: 0.56, 95% CI: 0.34–0.93, p = 0.03) were identified as independently protective factors. Conclusions/Significance Schistosomiasis is prevalent in this HIV cohort and may be beneficial for immunological reconstitution, while no effect on virological failure was apparent. A positive effect of schistosomiasis-induced immunomodulation on survival and retention in care needs confirmation in future studies. Infections with HIV and blood flukes (Schistosoma) both exert chronic modulatory effects on the host’s immune system. Coinfections, meaning the host is simultaneously infected with both pathogens, are common in sub-Saharan Africa. In this situation the induced immune modulation of one pathogen may affect the course of the disease induced by the other pathogen. One study showed that coinfection with Schistosoma in people living with HIV who begin antiretroviral therapy (ART) may have deleterious effects on the reconstitution of the HIV-induced immunosuppression. In the current study, we investigated the effect of Schistosoma coinfection on the recovery of the patient’s immune system, on the efficacy of ART to suppress HIV replication, and on a combined endpoint of lost to follow-up or death. We found that schistosomiasis may have beneficial effects on immune reconstitution, while no deleterious effect was detected on HIV-suppressive efficacy of ART. Surprisingly, our data suggest that schistosomiasis-induced immunomodulatory effects might be beneficial for survival and retention in care. Future studies are warranted to confirm these findings. In the era of increasing access to ART in sub-Saharan Africa, the issue of schistosomiasis-HIV coinfection may have major consequences on the outcome of HIV treatment programs.
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Tchouwa GF, Eymard-Duvernay S, Cournil A, Lamare N, Serrano L, Butel C, Bertagnolio S, Mpoudi-Ngole E, Raizes E, Aghokeng AF. Nationwide Estimates of Viral Load Suppression and Acquired HIV Drug Resistance in Cameroon. EClinicalMedicine 2018; 1:21-27. [PMID: 31193678 PMCID: PMC6537545 DOI: 10.1016/j.eclinm.2018.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Population-based studies to estimate viral load (VL) suppression and rate of acquired HIV drug resistance (ADR) are essential in sub-Saharan Africa. We conducted the first nationally representative study estimating VL suppression and ADR in Cameroon. METHODS Eligible participants were patients on antiretroviral therapy (ART) for 12 to 24 months (ART 12-24) or 48 to 60 months (ART 48-60). ART 12-24 participants were recruited from 24 randomly selected clinics in both urban and rural regions. ART 48-60 participants were recruited from 7 urban clinics. Recruitment occurred from February to August 2015. Dried blood spots (DBSs) and plasma specimens were collected and tested for HIV-1 RNA level and presence of drug resistance mutations (DRM) when VL ≥ 1000 copies/ml. RESULTS Overall, 1064 ART 12-24 and 388 ART 48-60 participants were recruited. Viral suppression in the ART 12-24 group was 72.1% (95% CI: 66.3-77.2) overall, 75.0% (65.2-82.7) in urban sites, and 67.7% (58.3-75.8) in rural sites. In the ART 48-60 group, viral suppression was 67.7% (55.8-77.7). Overall, HIV drug resistance (HIVDR) was 17.7% (15.1-20.6) and 28.3% (17.4-42.5) in the ART 12-24 and ART 48-60 groups, respectively. However, among patients with VL ≥ 1000 copies/ml, HIVDR was identified in 63.3% (52.0-73.3) of ART 12-24 patients, and in 87.7% (67.4-96.1) of ART 48-60 patients. CONCLUSIONS Results of this first nationwide study indicate alarming levels of virological failure and ADR in Cameroon. Better ART management is urgently needed and should focus on improving ART adherence, availability of VL monitoring, and more timely switches to second-line ART.
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Affiliation(s)
- Gaëlle F. Tchouwa
- Centre de Recherche sur les Maladies Emergentes et Reemergentes (CREMER), Virology laboratory IMPM-IRD, IMPM, Yaoundé, Cameroon
| | - Sabrina Eymard-Duvernay
- Institut de Recherche pour le Développement (IRD) UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, Montpellier, France
| | - Amandine Cournil
- Institut de Recherche pour le Développement (IRD) UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, Montpellier, France
| | - Nadine Lamare
- Centre de Recherche sur les Maladies Emergentes et Reemergentes (CREMER), Virology laboratory IMPM-IRD, IMPM, Yaoundé, Cameroon
| | - Laetitia Serrano
- Institut de Recherche pour le Développement (IRD) UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, Montpellier, France
| | - Christelle Butel
- Institut de Recherche pour le Développement (IRD) UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, Montpellier, France
| | | | - Eitel Mpoudi-Ngole
- Centre de Recherche sur les Maladies Emergentes et Reemergentes (CREMER), Virology laboratory IMPM-IRD, IMPM, Yaoundé, Cameroon
| | - Elliot Raizes
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Avelin F. Aghokeng
- Centre de Recherche sur les Maladies Emergentes et Reemergentes (CREMER), Virology laboratory IMPM-IRD, IMPM, Yaoundé, Cameroon
- Institut de Recherche pour le Développement (IRD) UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, Montpellier, France
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Yaseen MM, Abuharfeil NM, Alqudah MA, Yaseen MM. Mechanisms and Factors That Drive Extensive Human Immunodeficiency Virus Type-1 Hypervariability: An Overview. Viral Immunol 2017; 30:708-726. [PMID: 29064351 DOI: 10.1089/vim.2017.0065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The extensive hypervariability of human immunodeficiency virus type-1 (HIV-1) populations represents a major barrier against the success of currently available antiretroviral therapy. Moreover, it is still the most important obstacle that faces the development of an effective preventive vaccine against this infectious virus. Indeed, several factors can drive such hypervariability within and between HIV-1 patients. These factors include: first, the very low fidelity nature of HIV-1 reverse transcriptase; second, the extremely high HIV-1 replication rate; and third, the high genomic recombination rate that the virus has. All these factors together with the APOBEC3 proteins family and the immune and antiviral drugs pressures drive the extensive hypervariability of HIV-1 populations. Studying these factors and the mechanisms that drive such hypervariability will provide valuable insights that may guide the development of effective therapeutic and preventive strategies against HIV-1 infection in the near future. To this end, in this review, we summarized recent advances in this area of HIV-1 research.
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Affiliation(s)
- Mahmoud Mohammad Yaseen
- 1 Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Jordan University of Science and Technology , Irbid, Jordan
| | - Nizar Mohammad Abuharfeil
- 2 Department of Applied Biological Sciences, College of Science and Arts, Jordan University of Science and Technology , Irbid, Jordan
| | - Mohammad Ali Alqudah
- 3 Department of Clinical Pharmacy, College of Pharmacy, Jordan University of Science and Technology , Irbid, Jordan
| | - Mohammad Mahmoud Yaseen
- 4 Department of Public Health, College of Medicine, Jordan University of Science and Technology , Irbid, Jordan
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Bayu B, Tariku A, Bulti AB, Habitu YA, Derso T, Teshome DF. Determinants of virological failure among patients on highly active antiretroviral therapy in University of Gondar Referral Hospital, Northwest Ethiopia: a case-control study. HIV AIDS-RESEARCH AND PALLIATIVE CARE 2017; 9:153-159. [PMID: 28848364 PMCID: PMC5557910 DOI: 10.2147/hiv.s139516] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Viral load monitoring is used as an important biomarker for diagnosing treatment failure in patients with HIV infection/AIDS. Ethiopia has started targeted viral load monitoring. However, factors leading to virological failure are not well understood and studied. Thus, the aim of this study was to identify the determinants of virological failure among HIV-infected patients on highly active antiretroviral therapy at the University of Gondar Referral Hospital, Northwest Ethiopia. METHODS A case-control study was conducted from May to June 2015. Cases were subjects who had already experienced virological failure; controls were those without virological failure. Data were extracted from 153 cases and 153 controls through chart review. A multivariate logistic regression analysis was carried out to identify factors associated with virological failure, and variables with a p-value <0.05 were considered statistically significant. RESULTS In this study, higher odds of virological failure was observed among patients aged <35 years (adjusted odds ratio [AOR] =2.52, 95% CI: 1.33, 4.77), who had had CD4+ count <200 cells/mm3 (AOR=9.03, 95% CI: 4.40, 18.50), showed poor adherence to antiretroviral therapy (ART) (AOR=15.80, 95% CI: 6.90, 36.50), and had taken ART for longer durations of 25-47 months (AOR=3.00, 95% CI: 1.10, 8.40) and ≥48 months (AOR=6.70, 95% CI: 2.70, 16.60). CONCLUSION This study showed that patients aged <35 years and with recent low CD4 count, poor adherence to treatment, and longer exposure to ART were positively and significantly associated with virological treatment failure. Therefore, evidence-based intervention should be implemented to improve adherence to ART, which in turn helps to boost immunity (CD4) and suppresses viral replication and load. Moreover, attention should be given to younger patients who have had ART for longer periods.
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Affiliation(s)
| | - Amare Tariku
- Department of Human Nutrition, Institute of Public Health
| | | | | | - Terefe Derso
- Department of Human Nutrition, Institute of Public Health
| | - Destaw Fetene Teshome
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Boullé C, Guichet E, Kouanfack C, Aghokeng A, Onambany B, Ikaka CM, Ngock E, Tsoumsta L, Msellati P, Mpoudi-Ngolé E, Peeters M, Delaporte E, Laurent C. Virologic Failure and Human Immunodeficiency Virus Drug Resistance in Rural Cameroon With Regard to the UNAIDS 90-90-90 Treatment Targets. Open Forum Infect Dis 2016; 3:ofw233. [PMID: 28018931 PMCID: PMC5170495 DOI: 10.1093/ofid/ofw233] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/27/2016] [Indexed: 01/10/2023] Open
Abstract
Background. In rural Africa, data on virologic effectiveness of antiretroviral treatment (ART) are not sufficient to assess the gap with the UNAIDS 90-90-90 treatment targets. We investigated the prevalences of unsuppressed viral load and antiretroviral drug resistance and the profile of genotypic resistance mutations among patients routinely treated in rural Cameroon. Methods. A cross-sectional study was performed in 2013–2014 among patients ≥15 years and on first-line ART for ≥6 months in a district hospital. Patients were offered free access to human immunodeficiency virus viral load testing. Genotypic drug resistance testing was done when the viral load was >1000 copies/mL. Multivariate logistic regression models were used to assess the relationship of unsuppressed viral load or antiretroviral drug resistance with sociodemographic and medical characteristics. Results. Of 407 patients (women 74.9%, median age 41.8 years, median time on ART 29.2 months), 96 (23.6%; 95% confidence interval [CI], 19.5–28.0) had unsuppressed viral load and 74 (18.2%; 95% CI, 14.6–22.3) had antiretroviral drug resistance. The prevalences of unsuppressed viral load and resistance increased with time on ART, from 12.0% and 8.0% in the 6- to 12-month group to 31.3% and 27.1% in the >72-month group, respectively. All 74 patients with antiretroviral drug resistance were resistant to nonnucleoside reverse-transcriptase inhibitors, and 57 of them were also resistant to nucleoside reverse-transcriptase inhibitors. Conclusions. Our estimations were among the highest observed in the west and central African region. The proportion of patients with virologic failure should be divided at least by 2 to reach the UNAIDS 90-90-90 treatment targets.
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Affiliation(s)
- Charlotte Boullé
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI , Montpellier , France
| | - Emilande Guichet
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI, Montpellier, France;; Centre de Recherche sur les Maladies Emergentes et Ré-émergentes,Yaoundé, Cameroon
| | | | - Avelin Aghokeng
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI, Montpellier, France;; Centre de Recherche sur les Maladies Emergentes et Ré-émergentes,Yaoundé, Cameroon
| | | | | | | | - Landry Tsoumsta
- Centre de Recherche sur les Maladies Emergentes et Ré-émergentes, Yaoundé, Cameroon
| | - Philippe Msellati
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI , Montpellier , France
| | - Eitel Mpoudi-Ngolé
- Centre de Recherche sur les Maladies Emergentes et Ré-émergentes, Yaoundé, Cameroon
| | - Martine Peeters
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI , Montpellier , France
| | - Eric Delaporte
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI , Montpellier , France
| | - Christian Laurent
- Institut de Recherche pour le Développement, Inserm, Université de Montpellier, Unité TransVIHMI , Montpellier , France
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Bivigou-Mboumba B, François-Souquière S, Deleplancque L, Sica J, Mouinga-Ondémé A, Amougou-Atsama M, Chaix ML, Njouom R, Rouet F. Broad Range of Hepatitis B Virus (HBV) Patterns, Dual Circulation of Quasi-Subgenotype A3 and HBV/E and Heterogeneous HBV Mutations in HIV-Positive Patients in Gabon. PLoS One 2016; 11:e0143869. [PMID: 26764909 PMCID: PMC4713159 DOI: 10.1371/journal.pone.0143869] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/09/2015] [Indexed: 12/20/2022] Open
Abstract
Integrated data on hepatitis B virus (HBV) patterns, HBV genotypes and mutations are lacking in human immunodeficiency virus type 1 (HIV-1) co-infected patients from Africa. This survey was conducted in 2010-2013 among 762 HIV-1-positive adults from Gabon who were predominantly treated with 3TC-based antiretroviral treatment. HBV patterns were identified using immunoassays detecting total antibody to hepatitis B core antigen (HBcAb), hepatitis B surface antigen (HBsAg), IgM HBcAb, hepatitis B e antigen (HBeAg), antibody to HBsAg (HBsAb) and an in-house real-time PCR test for HBV DNA quantification. Occult hepatitis B (OBI) was defined by the presence of isolated anti-HBc with detectable serum HBV DNA. HBV genotypes and HBV mutations were analyzed by PCR-direct sequencing method. Seventy-one (9.3%) patients tested positive for HBsAg, including one with acute hepatitis B (0.1%; 95% CI, 0.0%-0.2%), nine with HBeAg-positive chronic hepatitis B (CHB) (1.2%; 95% CI, 0.6%-2.2%), 16 with HBeAg-negative CHB (2.1%; 95% CI, 1.2%-3.3%) and 45 inactive HBV carriers (5.9%; 95% CI, 4.4%-7.8%). Sixty-one (8.0%; 95% CI, 6.2%-10.1%) patients showed OBI. Treated patients showed similar HBV DNA levels to those obtained in untreated patients, regardless of HBV patterns. Around 15.0% of OBI patients showed high (>1,000 UI/mL) viremia. The mutation M204V/I conferring resistance to 3TC was more common in HBV/A (47.4%) than in HBV/E isolates (0%) (P = .04). Our findings encouraged clinicians to promote HBV vaccination in patients with no exposure to HBV and to switch 3TC to universal TDF in those with CHB.
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Affiliation(s)
- Berthold Bivigou-Mboumba
- Laboratoire de Rétrovirologie, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
- Unité Mixte de Recherche VIH et Maladies Infectieuses Associées (UMR-VIH-MIA), CIRMF, Libreville, Gabon
- * E-mail: ;
| | | | - Luc Deleplancque
- Laboratoire de Rétrovirologie, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | - Jeanne Sica
- Centre de Traitement Ambulatoire (CTA), Franceville, Gabon
| | - Augustin Mouinga-Ondémé
- Laboratoire de Rétrovirologie, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
| | | | - Marie-Laure Chaix
- Laboratoire de Virologie, AP-HP, Hôpital Saint Louis; INSERM U941, Université Paris Diderot; Laboratoire associé au Centre national de Référence du VIH, Paris, France
| | - Richard Njouom
- Service de Virologie, Centre Pasteur du Cameroun, Yaoundé, Cameroun
| | - François Rouet
- Laboratoire de Rétrovirologie, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon
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Virological Response and Antiretroviral Drug Resistance Emerging during Antiretroviral Therapy at Three Treatment Centers in Uganda. PLoS One 2015; 10:e0145536. [PMID: 26700639 PMCID: PMC4689474 DOI: 10.1371/journal.pone.0145536] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 12/04/2015] [Indexed: 11/19/2022] Open
Abstract
Background With the scale-up of antiretroviral therapy (ART), monitoring programme performance is needed to maximize ART efficacy and limit HIV drug resistance (HIVDR). Methods We implemented a WHO HIVDR prospective survey protocol at three treatment centers between 2012 and 2013. Data were abstracted from patient records at ART start (T1) and after 12 months (T2). Genotyping was performed in the HIV pol region at the two time points. Results Of the 425 patients enrolled, at T2, 20 (4.7%) had died, 66 (15.5%) were lost to follow-up, 313 (73.6%) were still on first-line, 8 (1.9%) had switched to second-line, 17 (4.0%) had transferred out and 1 (0.2%) had stopped treatment. At T2, 272 out of 321 on first and second line (84.7%) suppressed below 1000 copies/ml and the HIV DR prevention rate was 70.1%, just within the WHO threshold of ≥70%. The proportion of participants with potential HIVDR was 20.9%, which is higher than the 18.8% based on pooled analyses from African studies. Of the 35 patients with mutations at T2, 80% had M184V/I, 65.7% Y181C, and 48.6% (54.8% excluding those not on Tenofovir) had K65R mutations. 22.9% had Thymidine Analogue Mutations (TAMs). Factors significantly associated with HIVDR prevention at T2 were: baseline viral load (VL) <100,000 copies/ml [Adjusted odds ratio (AOR) 3.13, 95% confidence interval (CI): 1.36–7.19] and facility. Independent baseline predictors for HIVDR mutations at T2 were: CD4 count <250 cells/μl (AOR 2.80, 95% CI: 1.08–7.29) and viral load ≥100,000 copies/ml (AOR 2.48, 95% CI: 1.00–6.14). Conclusion Strengthening defaulter tracing, intensified follow-up for patients with low CD4 counts and/or high VL at ART initiation together with early treatment initiation above 250 CD4 cells/ul and adequate patient counselling would improve ART efficacy and HIVDR prevention. The high rate of K65R and TAMs could compromise second line regimens including NRTIs.
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Konou AA, Salou M, Vidal N, Kodah P, Kombate D, Kpanla P, Nabroulaba T, Nyametso D, Singo-Tokofaï A, Pitche P, Delaporte E, Prince-David M, Peeters M, Dagnra AY. Virological outcome among HIV-1 infected patients on first-line antiretroviral treatment in semi-rural HIV clinics in Togo. AIDS Res Ther 2015; 12:38. [PMID: 26617663 PMCID: PMC4662816 DOI: 10.1186/s12981-015-0082-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 11/16/2015] [Indexed: 12/21/2022] Open
Abstract
Background Access to antiretroviral treatment (ART) in resource-limited countries has increased significantly but scaling-up ART into semi-rural and rural areas is more recent. Information on treatment outcome in such areas is still very limited notably due to additional difficulties to manage ART in these areas. Results 387 HIV-1 infected adults (≥18 years) were consecutively enrolled when attending healthcare services for their routine medical visit at 12 or 24 months on first-line ART in five HIV care centers (four semi-rural and one rural). Among them, 102 patients were on first-line ART for 12 ± 2 months (M12) and 285 for 24 ± 2 months (M24). Virological failure was observed in 70 (18.1 %) patients ranging from 13.9 to 31.6 % at M12 and from 8.1 to 22.4 % at M24 across the different sites. For 67/70 patients, sequencing was successful and drug resistance mutations were observed in 65 (97 %). The global prevalence of drug resistance in the study population was thus at least 16.8 % (65/387). Moreover, 32 (8.3 %) and 27 (6.9 %) patients were either on a completely ineffective ART regime or with only a single drug active. Several patients accumulated high numbers of mutations and developed also cross-resistance to abacavir, didanosine or the new NNRTI drugs like etravirine and rilpivirine. Conclusion The observations on ART treatment outcome from ART clinics in semi-rural areas are close to previous observations in Lomé, the capital city suggesting that national ART-programme management plays a role in treatment outcome.
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Bangoura N, Diouara AAM, Cissé M, Ndiaye HD, Mboup S, Ayouba A, Kane CT. Quantification de la Charge Virale et tests de résistance du VIH-1 aux
ARV à partir d’échantillons DBS (Dried Blood Spots) chez des patients
Guinéens sous traitement antirétroviral. Afr J Lab Med 2015; 4:168. [PMID: 38440313 PMCID: PMC10911652 DOI: 10.4102/ajlm.v4i1.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 12/12/2014] [Indexed: 03/06/2024] Open
Abstract
Quantification of Viral load and resistance tests of HIV-1 to ARVs from dried blood spots samples in Guinean patients undergoing antiretroviral treatment. Problem As in several countries of the South, the virological monitoring of patients undergoing antiretroviral treatment (ARVT) in Guinea is low or non-existent in some locations. The aim of this study was to assess the technical and logistical feasibility of the use of (dried blood spots) DBSs in viral load (VL) and genotyping tests. Method From September 2010 to October 2010, DBS were prepared from blood samples of adult patients under ARVT. The samples had to be sent to the reference laboratory within 30 days after the sample had been done at ambient temperature. The VL was quantified and the samples of patients with virological failure (CV ≥ 3 log10 copies/mL) were genotyped according to the ANRS protocol. The Stanford algorithm, version 6.0.8, was used to analyse and interpret the resistance mutations. Results Amongst the 136 included patients, 129 and 7 were under first and second line treatment respectively, and monitored for an average of 35 months [IQR: 6-108]. Virological failure was noticed among 33 patients. Among them, 84.8% (n = 28/33) benefited from genotyping. The global resistance rate was 14% (n = 19/136). CRF02_AG was the most prevalent viral subtype (82%; n = 23). Conclusion In addition to demonstrating the technical and logistic feasibility of VL and genotyping tests from DBSs, these results show the relevance of their use in the virological monitoring of patients under ARVT. Also, this study made it possible to provide information on virological failure, ARV resistance and the HIV-1 genetic diversity in Guinea.
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Affiliation(s)
| | - Abou A M Diouara
- Laboratoire de Bactériologie Virologie CHU Aristide Le Dantec, Université Cheikh Anta Diop de Dakar, Sénégal
| | - Mohamed Cissé
- Service de Dermatologie CHU Donka, CTA, Conakry, Guinée
| | - Halimatou D Ndiaye
- Laboratoire de Bactériologie Virologie CHU Aristide Le Dantec, Université Cheikh Anta Diop de Dakar, Sénégal
| | - Souleymame Mboup
- Laboratoire de Bactériologie Virologie CHU Aristide Le Dantec, Université Cheikh Anta Diop de Dakar, Sénégal
| | | | - Coumba T Kane
- Laboratoire de Bactériologie Virologie CHU Aristide Le Dantec, Université Cheikh Anta Diop de Dakar, Sénégal
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Masikini P, Mpondo BCT. HIV drug resistance mutations following poor adherence in HIV-infected patient: a case report. Clin Case Rep 2015; 3:353-6. [PMID: 26185627 PMCID: PMC4498841 DOI: 10.1002/ccr3.254] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/17/2014] [Accepted: 02/20/2015] [Indexed: 12/27/2022] Open
Abstract
Acquired HIV drug resistance following poor adherence is common. We report a case of HIV-infected patient with poor CD4 gain and self reported poor adherence. Investigations revealed high viral load and resistance to NRTIs and NNRTIs with sensitivity to boosted PIs. HIVDR mutations create treatment challenges in resource limited settings.
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Affiliation(s)
- Peter Masikini
- Department of Internal Medicine, Bugando Medical Centre Mwanza, Tanzania ; Department of Internal Medicine, Catholic University of Health and Allied Sciences Mwanza, Tanzania
| | - Bonaventura C T Mpondo
- Department of Internal Medicine, College of Health Sciences, The University of Dodoma Dodoma, Tanzania
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Cohen CR, Steinfeld RL, Weke E, Bukusi EA, Hatcher AM, Shiboski S, Rheingans R, Scow KM, Butler LM, Otieno P, Dworkin SL, Weiser SD. Shamba Maisha: Pilot agricultural intervention for food security and HIV health outcomes in Kenya: design, methods, baseline results and process evaluation of a cluster-randomized controlled trial. SPRINGERPLUS 2015; 4:122. [PMID: 25992307 PMCID: PMC4429425 DOI: 10.1186/s40064-015-0886-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 02/13/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Despite advances in treatment of people living with HIV, morbidity and mortality remains unacceptably high in sub-Saharan Africa, largely due to parallel epidemics of poverty and food insecurity. METHODS/DESIGN We conducted a pilot cluster randomized controlled trial (RCT) of a multisectoral agricultural and microfinance intervention (entitled Shamba Maisha) designed to improve food security, household wealth, HIV clinical outcomes and women's empowerment. The intervention was carried out at two HIV clinics in Kenya, one randomized to the intervention arm and one to the control arm. HIV-infected patients >18 years, on antiretroviral therapy, with moderate/severe food insecurity and/or body mass index (BMI) <18.5, and access to land and surface water were eligible for enrollment. The intervention included: 1) a microfinance loan (~$150) to purchase the farming commodities, 2) a micro-irrigation pump, seeds, and fertilizer, and 3) trainings in sustainable agricultural practices and financial literacy. Enrollment of 140 participants took four months, and the screening-to-enrollment ratio was similar between arms. We followed participants for 12 months and conducted structured questionnaires. We also conducted a process evaluation with participants and stakeholders 3-5 months after study start and at study end. DISCUSSION Baseline results revealed that participants at the two sites were similar in age, gender and marital status. A greater proportion of participants at the intervention site had a low BMI in comparison to participants at the control site (18% vs. 7%, p = 0.054). While median CD4 count was similar between arms, a greater proportion of participants enrolled at the intervention arm had a detectable HIV viral load compared with control participants (49% vs. 28%, respectively, p < 0.010). Process evaluation findings suggested that Shamba Maisha had high acceptability in recruitment, delivered strong agricultural and financial training, and led to labor saving due to use of the water pump. Implementation challenges included participant concerns about repaying loans, agricultural challenges due to weather patterns, and a challenging partnership with the microfinance institution. We expect the results from this pilot study to provide useful data on the impacts of livelihood interventions and will help in the design of a definitive cluster RCT. TRIAL REGISTRATION This trial is registered at ClinicalTrials.gov, NCT01548599.
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Affiliation(s)
- Craig R Cohen
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, 550 16th Street, San Francisco, CA 94158 USA ; Center of Expertise in Women's Health & Empowerment, University of California Global Health Institute, San Francisco, CA USA
| | - Rachel L Steinfeld
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, 550 16th Street, San Francisco, CA 94158 USA
| | - Elly Weke
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Elizabeth A Bukusi
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Abigail M Hatcher
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, 550 16th Street, San Francisco, CA 94158 USA ; Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Stephen Shiboski
- Departments of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA USA
| | - Richard Rheingans
- Department of Environmental and Global Health, University of Florida, Gainesville, FL USA
| | - Kate M Scow
- Department of Soil Science and Soil Microbial Biology, University of California Davis, Davis, CA USA
| | - Lisa M Butler
- Boston Children's Hospital and Harvard Medical School, Boston, MA USA
| | - Phelgona Otieno
- Centre for Clinical Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Shari L Dworkin
- Departments of Social and Behavioral Sciences, University of California San Francisco, San Francisco, CA USA ; Center of Expertise in Women's Health & Empowerment, University of California Global Health Institute, San Francisco, CA USA
| | - Sheri D Weiser
- Departments of Medicine, University of California San Francisco, San Francisco, CA USA ; Center of Expertise in Women's Health & Empowerment, University of California Global Health Institute, San Francisco, CA USA
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Usefulness of a fourth generation ELISA assay for the reliable identification of HCV infection in HIV-positive adults from Gabon (Central Africa). PLoS One 2015; 10:e0116975. [PMID: 25617896 PMCID: PMC4305295 DOI: 10.1371/journal.pone.0116975] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 12/17/2014] [Indexed: 02/07/2023] Open
Abstract
Background/Objectives Guidelines for optimized HCV screening are urgently required in Africa, especially for patients infected with HIV, who sometimes show false positive or false negative reactivity in anti-HCV antibody assays. Here, we assessed the usefulness of a fourth-generation HCV Ag-Ab ELISA for the identification of active HCV infection in HIV-positive patients. Methods This cross-sectional study was conducted between 03/2010 and 01/2013 and included 762 Gabonese HIV-positive adult patients. The results of ELISA (Monolisa HCV Ag-Ab ULTRA, Bio-Rad) were compared with those obtained by RT-PCR (gold standard). The optimal ELISA signal-to-cutoff (S/CO) ratio to identify patients with active hepatitis C (positive HCV RNA) was determined. Specimens were further tested by the INNO-LIA HCV Score assay (Innogenetics) and the Architect HCV Ag kit (Abbott) to define the best diagnostic strategy. Results Sixty-seven patients tested positive for HCV (S/CO ratio ≥ 1) by ELISA. Of these, 47 (70.1%) tested positive for HCV RNA. The optimal S/CO associated with active HCV infection was 1.7. At this threshold, the sensitivity of ELISA was 97.9% (95% confidence interval (CI) 90.0–99.9%), its specificity was 91.3% (95% CI 85.0–95.5%), and HCV seroprevalence rate was 7.3% (56/762) (95% CI 5.6–9.4%). Among 57 HCV-seropositive patients with available INNO-LIA results, false reactivity was identified in 14 (24.6%), resolved HCV infection in two (3.5%), possible acute HCV infections in nine (15.8%) and likely chronic HCV infections in 32 (56.1%) patients. HCV core Ag was undetectable in 14/15 (93.3%) specimens that tested negative for HCV RNA whereas it was quantified in 34 (out of 39, 87.2%) samples that tested positive for HCV RNA. Conclusions Our study provides comprehensive guidance for HCV testing in Gabon, and will help greatly clinicians to improve case definitions for both the notification and surveillance of HCV in patients co-infected with HIV.
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Koigi P, Ngayo MO, Khamadi S, Ngugi C, Nyamache AK. HIV type 1 drug resistance patterns among patients failing first and second line antiretroviral therapy in Nairobi, Kenya. BMC Res Notes 2014; 7:890. [PMID: 25487529 PMCID: PMC4295353 DOI: 10.1186/1756-0500-7-890] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 11/21/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The ever-expanding rollout of antiretroviral therapy in poor resource settings without routine virological monitoring has been accompanied with development of drug resistance that has resulted in limited treatment success. METHODS A cross-sectional study with one time viral load was conducted during the period between 2012 and 2013 to determine treatment failure and drug resistance mutations among adults receiving first-line (44) (3TC_d4T/AZT_NVP/EFV) and second-line (20) (3TC/AZT/LPV/r) in Nairobi, Kenya. HIV-1 pol-RT genotyping for drug resistance was performed using an in-house protocol. RESULTS A total of 64 patients were recruited (mean age 36.9 yrs.) during the period between 2012 and 2013 of the 44 adult patients failing first-line 24 (40.9%) had drug resistance mutations. Eight (8) patients had NRTI resistance mutations with NAMS M184V (54.2%) and K65R (8.4%) mutations being the highest followed by TAMs T215Y and K70R (12.5%). In addition, among patients failing second-line (20), six patients (30%) had NNRTI resistance; two patients on K103N and G190A mutations while V106A, Y184V, A98G, Y181C mutations per patient were also detected. However, for NRTI two patients had TAM T215Y. M184V mutation occurred in one patient. CONCLUSIONS The study findings showed that HIV-1 drug resistance was significantly high in the study population. The detected accumulated resistance strains show that emergence of HIV drug resistance will continue to be a big challenge and should be given more attention as the scale up of treatment in the country continues.
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Affiliation(s)
- Peter Koigi
- />Department of Medical Laboratory Sciences, Kenyatta University, Nairobi, Kenya
| | - Musa Otieno Ngayo
- />Center for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Samoel Khamadi
- />Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Caroline Ngugi
- />Department of Medical Microbiology, Jomo Kenyatta University of Agriculture & Technology, Nairobi, Kenya
| | - Anthony Kebira Nyamache
- />Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
- />Department of Microbiology, Kenyatta University, Nairobi, Kenya
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Zoufaly A, Jochum J, Hammerl R, Nassimi N, Raymond Y, Burchard GD, Schmiedel S, Drexler JF, Campbell NK, Taka N, Awasom C, Metzner KJ, van Lunzen J, Feldt T. Virological failure after 1 year of first-line ART is not associated with HIV minority drug resistance in rural Cameroon . J Antimicrob Chemother 2014; 70:922-5. [PMID: 25428920 DOI: 10.1093/jac/dku470] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES The aim of this study was to describe clinical and virological outcomes in therapy-naive HIV-1-positive patients treated in a routine ART programme in rural Cameroon. METHODS In a prospective cohort, 300 consecutive patients starting first-line ART were enrolled and followed for 12 months. Among 238 patients with available viral load data at Month 12, logistic regression was used to analyse risk factors for virological failure (≥1000 HIV RNA copies/mL) including clinical, immunological and virological parameters, as well as data on drug adherence. Population sequencing was performed to detect the presence of drug-resistance mutations in patients with virological failure at Month 12; minority drug-resistance mutations at baseline were analysed using next-generation sequencing in these patients and matched controls. RESULTS At Month 12, 38/238 (16%) patients experienced virological failure (≥1000 HIV RNA copies/mL). Patients with virological failure were younger, had lower CD4 cell counts and were more often WHO stage 3 or 4 at baseline. Sixty-three percent of patients with virological failure developed at least one drug-resistance mutation. The M184V (n = 18) and K103N (n = 10) mutations were most common. At baseline, 6/30 patients (20%) experiencing virological failure and 6/35 (17%) matched controls had evidence of minority drug-resistance mutations using next-generation sequencing (P = 0.77). Lower CD4 count at baseline (OR per 100 cells/mm(3) lower 1.41, 95% CI 1.02-1.96, P = 0.04) and poorer adherence (OR per 1% lower 1.05, 95% CI 1.02-1.08, P < 0.001) were associated with a higher risk of virological failure. Unavailability of ART at the treatment centre was the single most common cause for incomplete adherence. CONCLUSIONS Virological failure after 1 year of ART was not associated with minority drug resistance at baseline but with incomplete adherence. Strategies to assure adherence and uninterrupted drug supplies are pivotal factors for therapy success.
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Affiliation(s)
- A Zoufaly
- Infectious Diseases Unit, Department of Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany Department of Medicine 4, Kaiser Franz Josef Hospital, Vienna, Austria
| | - J Jochum
- Infectious Diseases Unit, Department of Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - R Hammerl
- Clinical Research Unit, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - N Nassimi
- Clinical Research Unit, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Y Raymond
- Bamenda Regional Hospital, Bamenda, Cameroon
| | - G D Burchard
- Clinical Research Unit, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - S Schmiedel
- Infectious Diseases Unit, Department of Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - J F Drexler
- Institute of Virology, University of Bonn, Bonn, Germany
| | - N K Campbell
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - N Taka
- Bamenda Regional Hospital, Bamenda, Cameroon
| | - C Awasom
- Bamenda Regional Hospital, Bamenda, Cameroon
| | - K J Metzner
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - J van Lunzen
- Infectious Diseases Unit, Department of Medicine 1, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - T Feldt
- Clinical Research Unit, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany Clinic of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Düsseldorf, Germany
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HIV multi-drug resistance at first-line antiretroviral failure and subsequent virological response in Asia. J Int AIDS Soc 2014; 17:19053. [PMID: 25141905 PMCID: PMC4139921 DOI: 10.7448/ias.17.1.19053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/01/2014] [Accepted: 06/20/2014] [Indexed: 11/08/2022] Open
Abstract
Introduction First-line antiretroviral therapy (ART) failure often results from the development of resistance-associated mutations (RAMs). Three patterns, including thymidine analogue mutations (TAMs), 69 Insertion (69Ins) and the Q151M complex, are associated with resistance to multiple-nucleoside reverse transcriptase inhibitors (NRTIs) and may compromise treatment options for second-line ART. Methods We investigated patterns and factors associated with multi-NRTI RAMs at first-line failure in patients from The TREAT Asia Studies to Evaluate Resistance – Monitoring study (TASER-M), and evaluated their impact on virological responses at 12 months after switching to second-line ART. RAMs were compared with the IAS-USA 2013 mutations list. We defined multi-NRTI RAMs as the presence of either Q151M; 69Ins; ≥2 TAMs; or M184V+≥1 TAM. Virological suppression was defined as viral load (VL) <400 copies/ml at 12 months from switch to second-line. Logistic regression was used to analyze (1) factors associated with multi-NRTI RAMs at first-line failure and (2) factors associated with virological suppression after 12 months on second-line. Results A total of 105 patients from 10 sites in Thailand, Hong Kong, Indonesia, Malaysia and Philippines were included. There were 97/105 (92%) patients harbouring ≥1 RAMs at first-line failure, 39/105 with multi-NRTI RAMs: six with Q151M; 24 with ≥2 TAMs; and 32 with M184V+≥1 TAM. Factors associated with multi-NRTI RAMs were CD4 ≤200 cells/µL at genotyping (OR=4.43, 95% CI [1.59–12.37], p=0.004) and ART duration >2 years (OR=6.25, 95% CI [2.39–16.36], p<0.001). Among 87/105 patients with available VL at 12 months after switch to second-line ART, virological suppression was achieved in 85%. The median genotypic susceptibility score (GSS) for the second-line regimen was 2.00. Patients with ART adherence ≥95% were more likely to be virologically suppressed (OR=9.33, 95% CI (2.43–35.81), p=0.001). Measures of patient resistance to second-line ART, including the GSS, were not significantly associated with virological outcome. Conclusions Multi-NRTI RAMs at first-line failure were associated with low CD4 level and longer duration of ART. With many patients switching to highly susceptible regimens, good adherence was still crucial in achieving virological response. This emphasizes the importance of continued adherence counselling well into second-line therapy.
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Taieb F, Aghokeng AF, Eymard-Duvernay S, Chia JE, Einterz E, Mpoudi-Ngole E, Peeters M, Molina JM, Delaporte E. Challenges of antiretroviral treatment monitoring in rural and remote-access regions in Africa. AIDS Res Hum Retroviruses 2014; 30:623-5. [PMID: 24645979 DOI: 10.1089/aid.2014.0035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Fabien Taieb
- Hôpital Saint-Louis, Service de Maladies Infectieuses et Tropicales, Paris, France
- UMI 233 TransVIHMI, Institut de Recherche pour le Développement (IRD), University Montpellier 1, Montpellier, France
| | - Avelin F. Aghokeng
- UMI 233 TransVIHMI, Institut de Recherche pour le Développement (IRD), University Montpellier 1, Montpellier, France
- Virology Laboratory CREMER/IMPM/IRD, Yaoundé, Cameroon
| | - Sabrina Eymard-Duvernay
- UMI 233 TransVIHMI, Institut de Recherche pour le Développement (IRD), University Montpellier 1, Montpellier, France
| | | | | | | | - Martine Peeters
- UMI 233 TransVIHMI, Institut de Recherche pour le Développement (IRD), University Montpellier 1, Montpellier, France
| | - Jean-Michel Molina
- Hôpital Saint-Louis, Service de Maladies Infectieuses et Tropicales, Paris, France
| | - Eric Delaporte
- UMI 233 TransVIHMI, Institut de Recherche pour le Développement (IRD), University Montpellier 1, Montpellier, France
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Drug resistance in HIV patients with virological failure or slow virological response to antiretroviral therapy in Ethiopia. BMC Infect Dis 2014; 14:181. [PMID: 24708645 PMCID: PMC4234735 DOI: 10.1186/1471-2334-14-181] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 03/31/2014] [Indexed: 11/24/2022] Open
Abstract
Background The ongoing scale-up of antiretroviral therapy (ART) in sub-Saharan Africa has prompted the interest in surveillance of transmitted and acquired HIV drug resistance. Resistance data on virological failure and mutations in HIV infected populations initiating treatment in sub-Saharan Africa is sparse. Methods HIV viral load (VL) and resistance mutations pre-ART and after 6 months were determined in a prospective cohort study of ART-naïve HIV patients initiating first-line therapy in Jimma, Ethiopia. VL measurements were done at baseline and after 3 and 6 months. Genotypic HIV drug resistance (HIVDR) was performed on patients exhibiting virological failure (>1000 copies/mL at 6 months) or slow virological response (>5000 copies/mL at 3 months and <1000 copies/mL at 6 months). Results Two hundred sixty five patients had VL data available at baseline and at 6 months. Virological failure was observed among 14 (5.3%) participants out of 265 patients. Twelve samples were genotyped and six had HIV drug resistance (HIVDR) mutations at baseline. Among virological failures, 9/11 (81.8%) harbored one or more HIVDR mutations at 6 months. The most frequent mutations were K103N and M184VI. Conclusions Our data confirm that the currently recommended first-line ART regimen is efficient in the vast majority of individuals initiating therapy in Jimma, Ethiopia eight years after the introduction of ART. However, the documented occurrence of transmitted resistance and accumulation of acquired HIVDR mutations among failing patients justify increased vigilance by improving the availability and systematic use of VL testing to monitor ART response, and underlines the need for rapid, inexpensive tests to identify the most common drug resistance mutations.
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Mouinga-Ondémé A, Mabika-Mabika A, Alalade P, Mongo AD, Sica J, Liégeois F, Rouet F. Significant impact of non-B HIV-1 variants genetic diversity in Gabon on plasma HIV-1 RNA quantitation. J Med Virol 2013; 86:52-7. [PMID: 24127290 DOI: 10.1002/jmv.23770] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2013] [Indexed: 11/06/2022]
Abstract
Evaluations of HIV-1 RNA viral load assays are lacking in Central Africa. The main objective of our study was to assess the reliability of HIV-1 RNA results obtained with three different assays for samples collected in Gabon. A total of 137 plasma specimens were assessed for HIV-1 RNA using the Abbott RealTime HIV-1® and Nuclisens HIV-1 EasyQ® version 2.0 assays. It included HIV-1 non-B samples (n = 113) representing six subtypes, 10 CRFs and 18 URFs from patients infected with HIV-1 and treated with antiretrovirals that were found HIV-1 RNA positive (≥300 copies/ml) with the Generic HIV viral load® assay; and samples (n = 24) from untreated individuals infected with HIV-1 but showing undetectable (<300 copies/ml) results with the Biocentric kit. For samples found positive with the Generic HIV viral load® test, correlation coefficients obtained between the three techniques were relatively low (R = 0.65 between Generic HIV viral load® and Abbott RealTime HIV-1®, 0.50 between Generic HIV viral load® and Nuclisens HIV-1 EasyQ®, and 0.66 between Abbott RealTime HIV-1® and Nuclisens HIV-1 EasyQ®). Discrepancies by at least one log10 were obtained for 19.6%, 33.7%, and 20% of samples, respectively, irrespective of genotype. Most of samples (22/24) from untreated study patients, found negative with the Biocentric kit, were also found negative with the two other techniques. In Central Africa, HIV-1 genetic diversity remains challenging for viral load testing. Further studies are required in the same area to confirm the presence of HIV-1 strains that are not amplified with at least two different viral load assays.
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Rusine J, Asiimwe-Kateera B, van de Wijgert J, Boer KR, Mukantwali E, Karita E, Gasengayire A, Jurriaans S, de Jong M, Ondoa P. Low primary and secondary HIV drug-resistance after 12 months of antiretroviral therapy in human immune-deficiency virus type 1 (HIV-1)-infected individuals from Kigali, Rwanda. PLoS One 2013; 8:e64345. [PMID: 23950859 PMCID: PMC3741294 DOI: 10.1371/journal.pone.0064345] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 04/09/2013] [Indexed: 11/19/2022] Open
Abstract
Treatment outcomes of HIV patients receiving antiretroviral therapy (ART) in Rwanda are scarcely documented. HIV viral load (VL) and HIV drug-resistance (HIVDR) outcomes at month 12 were determined in a prospective cohort study of antiretroviral–naïve HIV patients initiating first-line therapy in Kigali. Treatment response was monitored clinically and by regular CD4 counts and targeted HIV viral load (VL) to confirm drug failure. VL measurements and HIVDR genotyping were performed retrospectively on baseline and month 12 samples. One hundred and fifty-eight participants who completed their month 12 follow-up visit had VL data available at month 12. Most of them (88%) were virologically suppressed (VL≤1000 copies/mL) but 18 had virological failure (11%), which is in the range of WHO-suggested targets for HIVDR prevention. If only CD4 criteria had been used to classify treatment response, 26% of the participants would have been misclassified as treatment failure. Pre-therapy HIVDR was documented in 4 of 109 participants (3.6%) with an HIVDR genotyping results at baseline. Eight of 12 participants (66.7%) with virological failure and HIVDR genotyping results at month 12 were found to harbor mutation(s), mostly NNRTI resistance mutations, whereas 4 patients had no HIVDR mutations. Almost half (44%) of the participants initiated ART at CD4 count ≤200cell/µl and severe CD4 depletion at baseline (<50 cells/µl) was associated with virological treatment failure (p = 0.008). Although the findings may not be generalizable to all HIV patients in Rwanda, our data suggest that first-line ART regimen changes are currently not warranted. However, the accumulation of acquired HIVDR mutations in some participants underscores the need to reinforce HIVDR prevention strategies, such as increasing the availability and appropriate use of VL testing to monitor ART response, ensuring high quality adherence counseling, and promoting earlier identification of HIV patients and enrollment into HIV care and treatment programs.
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Affiliation(s)
- John Rusine
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Academic Medical Center, Amsterdam, The Netherlands
- National Reference Laboratory, Kigali, Rwanda
- The Infectious Diseases Network for Treatment and Research in Africa (INTERACT) project, Kigali, Rwanda
| | - Brenda Asiimwe-Kateera
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Academic Medical Center, Amsterdam, The Netherlands
- The Infectious Diseases Network for Treatment and Research in Africa (INTERACT) project, Kigali, Rwanda
| | - Janneke van de Wijgert
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Academic Medical Center, Amsterdam, The Netherlands
- University of Liverpool, Institute of Infection and Global Health, Liverpool, United Kingdom
| | - Kimberly Rachel Boer
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Academic Medical Center, Amsterdam, The Netherlands
- Royal Tropical Institute, Biomedical Research, Amsterdam, The Netherlands
- The Infectious Diseases Network for Treatment and Research in Africa (INTERACT) project, Kigali, Rwanda
| | | | | | | | - Suzanne Jurriaans
- Academic Medical Center, Department of Medical Microbiology, Amsterdam, The Netherlands
| | - Menno de Jong
- Academic Medical Center, Department of Medical Microbiology, Amsterdam, The Netherlands
| | - Pascale Ondoa
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Academic Medical Center, Amsterdam, The Netherlands
- * E-mail:
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Liégeois F, Reteno DGI, Mouinga-Ondémé A, Sica J, Rouet F. Short communication: high natural polymorphism in the gag gene cleavage sites of non-B HIV type 1 isolates from Gabon. AIDS Res Hum Retroviruses 2013; 29:1179-82. [PMID: 23551028 DOI: 10.1089/aid.2013.0024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The main goal of the present study was to determine the frequency of substitutions in the cleavage sites (CS) of gag gene among non-B HIV-1 isolates from Gabon. Fifty plasma specimens, collected in 2010-2011, from HIV-1-infected patients failing first-line antiretroviral (ARV) regimens (constituted of two nucleoside reverse transcriptase inhibitors+one nonnucleoside reverse transcriptase inhibitor) (n=38) and from HIV-1-infected individuals untreated with ARV (n=12) were analyzed in the gag and gag-pol cleavage sites. Compared to HXB2 reference sequence, the total median number of substitutions in gag and gag-pol CS was 10 (range, 5-18). The cleavage site p2/NC was the most variable of the four gag CS with 100% (50/50) isolates carrying at least 1 substitution (range, 1-9). The two gag-pol TFP/p6pol and p6pol/PR CS sites were also highly variable (at least one substitution, 50/50, 100% in both cases). Substitutions at position G381 (p2/NC), L449 (p1/p6gag), and K444 (TFP/p6pol) were significantly more frequent in CRF02_AG strains, compared to other non-B strains (30.4% vs. 3.7%, p=0.03; 87.0% vs. 59.3%, p=0.03; and 91.3% vs. 59.3%, p=0.01, respectively). Other non-B subtypes were significantly more likely to harbor substitutions at position N487 (p6pol) (70.4%) than CRF02_AG (39.1%) (p=0.02). In Gabon, gag and gag-pol cleavage sites were highly polymorphic in protease inhibitor-naive patients harboring non-B HIV-1 strains. In sub-Saharan Africa, further studies are definitively required to better understand the impact of gag mutations among subjects receiving second-line LPV/r-containing regimens (monotherapy or triple combinations).
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Affiliation(s)
- Florian Liégeois
- Laboratoire de Rétrovirologie, CIRMF, BP769, Franceville, Gabon
- UMI 233 “Trans VIH MI” (Transitions Epidémiologiques, Recherches Translationnelles Appliquées au VIH et aux Maladies Infectieuses), Institut de Recherche pour le Développement (IRD) et Université de Montpellier 1 (UM1), Montpellier, France
| | | | | | - Jeanne Sica
- Centre de Traitement Ambulatoire (CTA), Franceville, Gabon
| | - François Rouet
- Laboratoire de Rétrovirologie, CIRMF, BP769, Franceville, Gabon
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Liégeois F, Boué V, Butel C, Mouinga-Ondémé A, Sica J, Zamba C, Peeters M, Delaporte E, Rouet F. HIV type-1 group O infection in Gabon: low prevalence rate but circulation of genetically diverse and drug-resistant HIV type-1 group O strains. AIDS Res Hum Retroviruses 2013; 29:1085-90. [PMID: 23409798 DOI: 10.1089/aid.2012.0375] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The goals of this study conducted in Gabon were to determine the prevalence rate of HIV-1 group O (HIV-1/O) infections and to characterize the genetic diversity of HIV-1/O strains as well as implications on antiretroviral (ARV) drug resistance. During 2010-2011, 1,176 samples from HIV-positive subjects were tested at the CIRMF (Centre International de Recherches Médicales de Franceville) retrovirology laboratory using an in-house serotyping assay. Plasma HIV-1/O RNA viral loads (VL) were determined using the Abbott RealTime HIV-1 assay. After full genome sequencing, drug resistance patterns were analyzed using two different algorithms (Agence Nationale de Recherches sur le SIDA et les hépatites virales and Stanford). Overall, four subjects (0.34%) were diagnosed as HIV-1/O infected. One subject, untreated by ARVs, died 2 months after HIV-1/O diagnosis. One was lost to follow-up. Two additional patients, treated with nonnucleoside reverse transcriptase inhibitor (NNRTI)-based regimens, showed CD4 counts <200/mm(3) and VL results of 101,000 and 10,050 cp/ml. After full-length genome sequencing of these two strains, we found a wide range of natural polymorphism in the protease (≥15 substitutions) and gp41 (N42D mutation) genes, as well as in the gag and gag-pol cleavage sites. No resistance mutation was detected in the integrase gene. These two strains harbored the Y181C mutation making them resistant to NNRTIs. M41L, M184V, and T215Y mutations were also found for one strain, making it resistant to all NRTIs by the Stanford algorithm. Even if HIV-1/O infection is low in Gabon, an accurate diagnosis and a reliable virological follow-up are required in Central Africa to optimize ARV treatments of HIV-1/O-infected patients.
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Affiliation(s)
- Florian Liégeois
- Laboratoire de Rétrovirologie, CIRMF (Centre International de Recherches Médicales de Franceville), Franceville, Gabon
- UMI 233 “Trans VIH MI” (Transitions épidémiologiques, recherches translationnelles appliquées au VIH et aux Maladies Infectieuses), Institut de Recherche pour le Développement (IRD), and Université de Montpellier 1 (UM1), Montpellier, France
| | - Vanina Boué
- Laboratoire de Rétrovirologie, CIRMF (Centre International de Recherches Médicales de Franceville), Franceville, Gabon
| | - Christelle Butel
- UMI 233 “Trans VIH MI” (Transitions épidémiologiques, recherches translationnelles appliquées au VIH et aux Maladies Infectieuses), Institut de Recherche pour le Développement (IRD), and Université de Montpellier 1 (UM1), Montpellier, France
| | - Augustin Mouinga-Ondémé
- Laboratoire de Rétrovirologie, CIRMF (Centre International de Recherches Médicales de Franceville), Franceville, Gabon
| | - Jeanne Sica
- Centre de Traitement Ambulatoire (CTA), Franceville, Gabon
| | - Chantal Zamba
- Centre de Traitement Ambulatoire (CTA), Libreville, Gabon
| | - Martine Peeters
- UMI 233 “Trans VIH MI” (Transitions épidémiologiques, recherches translationnelles appliquées au VIH et aux Maladies Infectieuses), Institut de Recherche pour le Développement (IRD), and Université de Montpellier 1 (UM1), Montpellier, France
| | - Eric Delaporte
- UMI 233 “Trans VIH MI” (Transitions épidémiologiques, recherches translationnelles appliquées au VIH et aux Maladies Infectieuses), Institut de Recherche pour le Développement (IRD), and Université de Montpellier 1 (UM1), Montpellier, France
| | - François Rouet
- Laboratoire de Rétrovirologie, CIRMF (Centre International de Recherches Médicales de Franceville), Franceville, Gabon
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