Last data update: Mar 21, 2025. (Total: 48935 publications since 2009)
Records 1-22 (of 22 Records) |
Query Trace: Lecher S[original query] |
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Pediatric and adolescent HIV viral load coverage and suppression rates in the context of the COVID-19 pandemic in 12 PEPFAR-supported sub-Saharan African countries in 2019 and 2020
Carpenter D , Hast M , Buono N , Hrapcak S , Sato K , Mrina R , Cox MH , Agaba PA , Vrazo AC , Wolf H , Rivadeneira ED , Shang JD , Mayer MM , Prao AH , Longuma HO , Kabwe C , Lwana PN , Tilahun T , Ts'oeu M , Mutisya I , Omoto LN , Cowan JG , Deus Mijt , Fagbamigbe OJ , Ene U , Ikpeazu A , Ndlovu MB , Matiko E , Schaad N , Bisimba J , Lema E , Musokotwane K , Maphosa T , Buthelezi B , Olarinoye A , Lawal I , Mukungunugwa S , Mwambona JT , Wondimu T , Kathure IA , Igboelina OD , Nzima VN , Bissai RG , Lenka M , Shasha W , Olivier NK , Matsinhe M , Wate A , Godfrey L , Alexander H , Alemnji G , Lecher S . PLOS Glob Public Health 2024 4 (8) e0003513 The early period of the COVID-19 pandemic limited access to HIV services for children and adolescents living with HIV (C/ALHIV). To determine progress in providing care and treatment services, we describe viral load coverage (VLC) and suppression (VLS) (<1000 copies/ mL) rates during the COVID-19 pandemic in 12 United States President's Emergency Plan for AIDS Relief (PEPFAR)-supported countries. Data for children (0-9 years) and adolescents (10-19 years) on VLC and VLS were analyzed for 12 sub-Saharan African (SSA) countries between 2019 (pre-COVID-19) and 2020 (during COVID-19). We report the number of viral load (VL) tests, and percent change in VLC and VLS for patients on ART. For 12 countries, 181,192 children had a VL test during the pre-COVID-19 period compared with 177,683 December 2020 during COVID-19. VLC decreased from 68.8% to 68.3% overall. However, 9 countries experienced an increase ranging from a 0.7%-point increase for Tanzania and Zimbabwe to a 15.3%-point increase for Nigeria. VLS increased for all countries from 71.2% to 77.7%. For adolescents the number with a VL test increased from 377,342 to 402,792. VLC decreased from 77.4% to 77.1%. However, 7 countries experienced an increase ranging from 1.8% for Mozambique to 13.8% for Cameroon. VLS increased for all countries from 76.8% to 83.8%. This analysis shows variation in HIV VLC across 12 SSA countries. VLS consistently improved across all countries demonstrating resilience of countries during 2020. Countries should continue to improve clinical outcomes from C/ALHIV despite service disruptions that may occur during pandemic response. |
HIV risk behaviour, viraemia, and transmission across HIV cascade stages including low-level viremia: Analysis of 14 cross-sectional population-based HIV Impact Assessment surveys in sub-Saharan Africa
Edun O , Okell L , Chun H , Bissek AZ , Ndongmo CB , Shang JD , Brou H , Ehui E , Ekra AK , Nuwagaba-Biribonwoha H , Dlamini SS , Ginindza C , Eshetu F , Misganie YG , Desta SL , Achia TNO , Aoko A , Jonnalagadda S , Wafula R , Asiimwe FM , Lecher S , Nkanaunena K , Nyangulu MK , Nyirenda R , Beukes A , Klemens JO , Taffa N , Abutu AA , Alagi M , Charurat ME , Dalhatu I , Aliyu G , Kamanzi C , Nyagatare C , Rwibasira GN , Jalloh MF , Maokola WM , Mgomella GS , Kirungi WL , Mwangi C , Nel JA , Minchella PA , Gonese G , Nasr MA , Bodika S , Mungai E , Patel HK , Sleeman K , Milligan K , Dirlikov E , Voetsch AC , Shiraishi RW , Imai-Eaton JW . PLOS Glob Public Health 2024 4 (4) e0003030 As antiretroviral treatment (ART) coverage for people living with HIV (PLHIV) increases, HIV programmes require up-to-date information about evolving HIV risk behaviour and transmission risk, including those with low-level viremia (LLV; >50 to ≤1000 copies/mL), to guide prevention priorities. We aimed to assess differences in sexual risk behaviours, distribution of viral load (VL) and proportion of transmission across PLHIV subgroups. We analysed data from Population-based HIV Impact Assessment surveys in 14 sub-Saharan African countries during 2015-2019. We estimated adjusted prevalence ratios (aPR) of self-reported HIV high-risk behaviour (multiple partners and condomless sex) across cascade stages via generalised estimation equations. We modelled the proportions of transmission from each subgroup using relative self-reported sexual risk, a Hill function for transmission rate by VL, and proportions within cascade stages from surveys and UNAIDS country estimates for 2010-2020. Compared to PLHIV with undetectable VL (≤50 copies/mL), undiagnosed PLHIV (aPR women: 1.28 [95% CI: 1.08-1.52]; men: 1.61 [1.33-1.95]) and men diagnosed but untreated (2.06 [1.52-2.78]) were more likely to self-report high-risk sex. High-risk behaviour was not significantly associated with LLV. Mean VL was similar among undiagnosed, diagnosed but untreated, and on ART but non-suppressed sub-groups. Across surveys, undiagnosed and diagnosed but untreated contributed most to transmission (40-91% and 1-41%, respectively), with less than 1% from those with LLV. Between 2010 and 2020, the proportion of transmission from individuals on ART but non-suppressed increased. In settings with high ART coverage, effective HIV testing, ART linkage, and retention remain priorities to reduce HIV transmission. Persons with LLV are an increasing share of PLHIV but their contribution to HIV transmission was small. Improving suppression among PLHIV on ART with VL ≥1000 copies/mL will become increasingly important. |
Performance of Repeat BinaxNOW SARS-CoV-2 Antigen Testing in a Community Setting, Wisconsin, November-December 2020 (preprint)
Shah MM , Salvatore PP , Ford L , Kamitani E , Whaley MJ , Mitchell K , Currie DW , Morgan CN , Segaloff HE , Lecher S , Somers T , Van Dyke ME , Bigouette JP , Delaney A , DaSilva J , O'Hegarty M , Boyle-Estheimer L , Abdirizak F , Karpathy SE , Meece J , Ivanic L , Goffard K , Gieryn D , Sterkel A , Bateman A , Kahrs J , Langolf K , Zochert T , Knight NW , Hsu CH , Kirking HL , Tate JE . medRxiv 2021 2021.04.05.21254834 Repeating the BinaxNOW antigen test for SARS-CoV-2 by two groups of readers within 30 minutes resulted in high concordance (98.9%) in 2,110 encounters. BinaxNOW test sensitivity was 77.2% (258/334) compared to real-time reverse transcription-polymerase chain reaction. Repeating antigen testing on the same day did not significantly improve test sensitivity while specificity remained high.Competing Interest StatementThe authors have declared no competing interest.Funding StatementThis work was funded by the Centers for Disease Control and Prevention.Author DeclarationsI confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.YesThe details of the IRB/oversight body that provided approval or exemption for the research described are given below:This activity was reviewed by CDC and was conducted consistent with applicable federal law and CDC policy. See e.g., 45 C.F.R. part 46.102(l)(2), 21 C.F.R. part 56; 42 U.S.C. 241(d); 5 U.S.C. 552a; 44 U.S.C. 3501 et seq.All necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived.YesI understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).YesI have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable.YesData will be made available upon reasonable request. |
Progress in scale up of HIV viral load testing in select sub-Saharan African countries 2016-2018
Fonjungo PN , Lecher S , Zeh C , Rottinghaus E , Chun H , Adje-Toure C , Lloyd S , Mwangi JW , Mwasekaga M , Eshete YM , Pati R , Mots'oane T , Mitruka K , Beukes A , Mwangi C , Bowen N , Hamunime N , Beard RS , Kabuje A , Nabadda S , Auld AF , Balachandra S , Zungu I , Kandulu J , Alemnji G , Ehui E , Alexander H , Ellenberger D . PLoS One 2023 18 (3) e0282652 INTRODUCTION: We assessed progress in HIV viral load (VL) scale up across seven sub-Saharan African (SSA) countries and discussed challenges and strategies for improving VL coverage among patients on anti-retroviral therapy (ART). METHODS: A retrospective review of VL testing was conducted in Côte d'Ivoire, Kenya, Lesotho, Malawi, Namibia, Tanzania, and Uganda from January 2016 through June 2018. Data were collected and included the cumulative number of ART patients, number of patients with ≥ 1 VL test result (within the preceding 12 months), the percent of VL test results indicating viral suppression, and the mean turnaround time for VL testing. RESULTS: Between 2016 and 2018, the proportion of PLHIV on ART in all 7 countries increased (range 5.7%-50.2%). During the same time period, the cumulative number of patients with one or more VL test increased from 22,996 to 917,980. Overall, viral suppression rates exceeded 85% for all countries except for Côte d'Ivoire at 78% by June 2018. Reported turnaround times for VL testing results improved in 5 out of 7 countries by between 5.4 days and 27.5 days. CONCLUSIONS: These data demonstrate that remarkable progress has been made in the scale-up of HIV VL testing in the seven SSA countries. |
Contribution of PEPFAR-supported HIV and TB molecular diagnostic networks to COVID-19 testing preparedness in 16 countries
Romano ER , Sleeman K , Hall-Eidson P , Zeh C , Bhairavabhotla R , Zhang G , Adhikari A , Alemnji G , Cardo YR , Pinheiro A , Pocongo B , Eno LT , Shang JD , Ndongmo CB , Rosario H , Moreno O , DeLen LAC , Fonjungo P , Kabwe C , Ahuke-Mundeke S , Gama D , Dlamini S , Maphalala G , Abreha T , Purfield A , Gebrehiwot YT , Desalegn DM , Basiye F , Mwangi J , Bowen N , Mengistu Y , Lecher S , Kampira E , Kaba M , Bitilinyu-Bangoh J , Masamha G , Viegas SO , Beard RS , vanRooyen G , Shiningavamwe AN , I JM , Iriemenam NC , Mba N , Okoi C , Katoro J , Kenyi DL , Bior BK , Mwangi C , Nabadda S , Kaleebu P , Yingst SL , Chikwanda P , Veri L , Simbi R , Alexander H . Emerg Infect Dis 2022 28 (13) S59-s68 The US President's Emergency Plan for AIDS Relief (PEPFAR) supports molecular HIV and tuberculosis diagnostic networks and information management systems in low- and middle-income countries. We describe how national programs leveraged these PEPFAR-supported laboratory resources for SARS-CoV-2 testing during the COVID-19 pandemic. We sent a spreadsheet template consisting of 46 indicators for assessing the use of PEPFAR-supported diagnostic networks for COVID-19 pandemic response activities during April 1, 2020, to March 31, 2021, to 27 PEPFAR-supported countries or regions. A total of 109 PEPFAR-supported centralized HIV viral load and early infant diagnosis laboratories and 138 decentralized HIV and TB sites reported performing SARS-CoV-2 testing in 16 countries. Together, these sites contributed to >3.4 million SARS-CoV-2 tests during the 1-year period. Our findings illustrate that PEPFAR-supported diagnostic networks provided a wide range of resources to respond to emergency COVID-19 diagnostic testing in 16 low- and middle-income countries. |
Progress towards the UNAIDS 90-90-90 targets among persons aged 50 and older living with HIV in 13 African countries
Farley SM , Wang C , Bray RM , Low AJ , Delgado S , Hoos D , Kakishozi AN , Harris TG , Nyirenda R , Wadonda N , Li M , Amuri M , Juma J , Kancheya N , Pietersen I , Mutenda N , Natanael S , Aoko A , Ngugi EW , Asiimwe F , Lecher S , Ward J , Chikwanda P , Mugurungi O , Moyo B , Nkurunziza P , Aibo D , Kabala A , Biraro S , Ndagije F , Musuka G , Ndongmo C , Shang J , Dokubo EK , Dimite LE , McCullough-Sanden R , Bissek AC , Getaneh Y , Eshetu F , Nkumbula T , Tenthani L , Kayigamba FR , Kirungi W , Musinguzi J , Balachandra S , Kayirangwa E , Ayite A , West CA , Bodika S , Sleeman K , Patel HK , Brown K , Voetsch AC , El-Sadr WM , Justman JJ . J Int AIDS Soc 2022 25 Suppl 4 e26005 INTRODUCTION: Achieving optimal HIV outcomes, as measured by global 90-90-90 targets, that is awareness of HIV-positive status, receipt of antiretroviral (ARV) therapy among aware and viral load (VL) suppression among those on ARVs, respectively, is critical. However, few data from sub-Saharan Africa (SSA) are available on older people (50+) living with HIV (OPLWH). We examined 90-90-90 progress by age, 15-49 (as a comparison) and 50+ years, with further analyses among 50+ (55-59, 60-64, 65+ vs. 50-54), in 13 countries (Cameroon, Cote d'Ivoire, Eswatini, Ethiopia, Kenya, Lesotho, Malawi, Namibia, Rwanda, Tanzania, Uganda, Zambia and Zimbabwe). METHODS: Using data from nationally representative Population-based HIV Impact Assessments, conducted between 2015and 2019, participants from randomly selected households provided demographic and clinical information and whole blood specimens for HIV serology, VL and ARV testing. Survey weighted outcomes were estimated for 90-90-90 targets. Country-specific Poisson regression models examined 90-90-90 variation among OPLWH age strata. RESULTS: Analyses included 24,826 HIV-positive individuals (15-49 years: 20,170; 50+ years: 4656). The first, second and third 90 outcomes were achieved in 1, 10 and 5 countries, respectively, by those aged 15-49, while OPLWH achieved outcomes in 3, 13 and 12 countries, respectively. Among those aged 15-49, women were more likely to achieve 90-90-90 targets than men; however, among OPLWH, men were more likely to achieve first and third 90 targets than women, with second 90 achievement being equivalent. Country-specific 90-90-90 regression models among OPLWH demonstrated minimal variation by age stratum across 13 countries. Among OLPWH, no first 90 target differences were noted by age strata; three countries varied in the second 90 by older age strata but not in a consistent direction; one country showed higher achievement of the third 90 in an older age stratum. CONCLUSIONS: While OPLWH in these 13 countries were slightly more likely than younger people to be aware of their HIV-positive status (first 90), this target was not achieved in most countries. However, OPLWH achieved treatment (second 90) and VL suppression (third 90) targets in more countries than PLWH <50. Findings support expanded HIV testing, prevention and treatment services to meet ongoing OPLWH health needs in SSA. |
Notes from the Field: Impact of the COVID-19 Response on Scale-Up of HIV Viral Load Testing - PEPFAR-Supported Countries, January-June 2020.
Lecher SL , Naluguza M , Mwangi C , N'Tale J , Edgil D , Alemnji G , Alexander H . MMWR Morb Mortal Wkly Rep 2021 70 (21) 794-795 CDC and the U.S. President’s Emergency Plan for AIDS Relief (PEPFAR) are committed to maintaining an international response to the HIV epidemic even as countries face the challenge of controlling the COVID-19 pandemic (1). The Joint United Nations Programme on HIV/AIDS has set the following 95-95-95 targets for HIV infection control by 2030: 1) ensure that 95% of HIV-positive persons are aware of their HIV status, 2) ensure that 95% of these persons receive antiretroviral treatment (ART) and 3) facilitate viral load testing and suppression (viral load ≤1,000 HIV RNA copies per mL of blood) among 95% of persons with HIV infection (2). PEPFAR and international donors support 50 countries by investing in diagnostic testing, ART, and viral load testing to monitor treatment outcomes. Recent COVID-19–related stay-at-home orders and travel restrictions have affected essential HIV services worldwide. In the face of these challenges, CDC and PEPFAR are committed to sustaining the momentum necessary to achieve the target goal of facilitating testing and viral suppression among 95% of persons with HIV. |
HIV Viral Load Monitoring Among Patients Receiving Antiretroviral Therapy - Eight Sub-Saharan Africa Countries, 2013-2018
Lecher SL , Fonjungo P , Ellenberger D , Toure CA , Alemnji G , Bowen N , Basiye F , Beukes A , Carmona S , de Klerk M , Diallo K , Dziuban E , Kiyaga C , Mbah H , Mengistu J , Mots'oane T , Mwangi C , Mwangi JW , Mwasekaga M , N'Tale J , Naluguza M , Ssewanyana I , Stevens W , Zungu I , Bhairavabhotla R , Chun H , Gaffga N , Jadczak S , Lloyd S , Nguyen S , Pati R , Sleeman K , Zeh C , Zhang G , Alexander H . MMWR Morb Mortal Wkly Rep 2021 70 (21) 775-778 One component of the Joint United Nations Programme on HIV/AIDS (UNAIDS) goal to end the HIV/AIDS epidemic by 2030, is that 95% of all persons receiving antiretroviral therapy (ART) achieve viral suppression.(†) Thus, testing all HIV-positive persons for viral load (number of copies of viral RNA per mL) is a global health priority (1). CDC and other U.S. government agencies, as part of the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), together with other stakeholders, have provided technical assistance and supported the cost for multiple countries in sub-Saharan Africa to expand viral load testing as the preferred monitoring strategy for clinical response to ART. The individual and population-level benefits of ART are well understood (2). Persons receiving ART who achieve and sustain an undetectable viral load do not transmit HIV to their sex partners, thereby disrupting onward transmission (2,3). Viral load testing is a cost-effective and sustainable programmatic approach for monitoring treatment success, allowing reduced frequency of health care visits for patients who are virally suppressed (4). Viral load monitoring enables early and accurate detection of treatment failure before immunologic decline. This report describes progress on the scale-up of viral load testing in eight sub-Saharan African countries from 2013 to 2018 and examines the trajectory of improvement with viral load testing scale-up that has paralleled government commitments, sustained technical assistance, and financial resources from international donors. Viral load testing in low- and middle-income countries enables monitoring of viral load suppression at the individual and population level, which is necessary to achieve global epidemic control. Although there has been substantial achievement in improving viral load coverage for all patients receiving ART, continued engagement is needed to reach global targets. |
Performance of Repeat BinaxNOW SARS-CoV-2 Antigen Testing in a Community Setting, Wisconsin, November-December 2020.
Shah MM , Salvatore PP , Ford L , Kamitani E , Whaley MJ , Kaitlin M , Currie DW , Morgan CN , Segaloff HE , Lecher S , Somers T , Van Dyke ME , Bigouette JP , Delaney A , DaSilva J , O'Hegarty M , Boyle-Estheimer L , Abdirizak F , Karpathy SE , Meece J , Ivanic L , Goffard K , Gieryn D , Sterkel A , Bateman A , Kahrs J , Langolf K , Zochert T , Knight NW , Hsu CH , Kirking HL , Tate JE . Clin Infect Dis 2021 73 S54-S57 Repeating the BinaxNOW antigen test for SARS-CoV-2 by two groups of readers within 30 minutes resulted in high concordance (98.9%) in 2,110 encounters. BinaxNOW test sensitivity was 77.2% (258/334) compared to real-time reverse transcription-polymerase chain reaction. Same day antigen testing did not significantly improve test sensitivity while specificity remained high. |
Adverse fetal and infant outcomes among HIV-infected women who received either NNRTI- or PI-based ART for PMTCT
Masaba R , Borkowf CB , Girde S , Zeh C , Ndivo R , Nyang'au I , Achola K , Thomas TK , Lecher SL . AIDS 2018 32 (12) 1625-1632 BACKGROUND: For HIV-infected pregnant and breastfeeding women, antiretroviral therapy (ART) is known to reduce the mother's risk of passing the infection to her child. However, concerns remain about possible associations between various components of different ART regimens and adverse fetal and infant outcomes. As part of a clinical trial in western Kenya for the prevention of mother-to-child transmission (PMTCT) of HIV, pregnant women received one of two different ART regimens. METHODS: The original PMTCT study conducted in Kenya enrolled 522 HIV-infected, ART-naive pregnant women. These women were assigned to receive an ART regimen that included either nevirapine, a nonnucleoside reverse transcriptase inhibitor (NNRTI), or nelfinavir, a protease inhibitor. This substudy involves 384 women from the original study who had baseline CD4 counts at least 250 cells/mul, and compares the risks of adverse fetal and infant outcomes between the two ART regimens. RESULTS: There were 386 live births (including multiples) and 7 (1.8%) stillbirths. Among live births, there were 67 preterm deliveries, 37 low-birth weight infants, and 14 infant deaths by 6 months. There were no statistically significant differences between the two ART regimens for any of the reported adverse outcomes. CONCLUSION: Although these data do not show significant differences between the NNRTI-based or protease inhibitor-based regimens in serious adverse fetal and infant outcomes, more studies need to be done and careful vigilance is needed to ensure infant safety. |
HIV testing at visits to physicians' offices in the U.S., 2009-2012
Ham DC , Lecher S , Gvetadze R , Huang YA , Peters P , Hoover KW . Am J Prev Med 2017 53 (5) 634-645 INTRODUCTION: HIV testing serves as an entry point for HIV care services for those who test HIV positive, and prevention services for those who test HIV negative. The Centers for Disease Control and Prevention recommends routine testing of adults and adolescents in healthcare settings. To identify missed opportunities for HIV testing at U.S. physicians' offices, data from the National Ambulatory Care Surveys from 2009 to 2012 were analyzed. METHODS: The mean annual number and percentage of visits with an HIV test among HIV-uninfected nonpregnant females and males aged 15-65 years was estimated using weighted survey data. Factors associated with HIV testing at visits to physicians' offices were identified. RESULTS: The mean annual number of U.S. physicians' office visits with an HIV test conducted was 1,396,736 (0.4% of all visits) among nonpregnant females and 986,891 (0.5% of all visits) among males. For both nonpregnant females and males, HIV testing prevalence was highest among those aged 20-29 years (1.3% of all visits by nonpregnant females; 1.7% of all visits by males) and non-Hispanic blacks (1.1% of all visits by nonpregnant females; 1.0% of all visits by males). An HIV test was not conducted at 98.5% of visits at which venipuncture was performed for both nonpregnant females and males. CONCLUSIONS: Important opportunities exist to increase HIV testing coverage at U.S. physicians' offices. Structural interventions, such as routine opt-out testing policies, electronic medical record notifications, and use of non-clinical staff for testing could be implemented to increase HIV testing in these settings. |
Correlation of adherence by pill count, self-report, MEMS and plasma drug levels to treatment response among women receiving ARV therapy for PMTCT in Kenya
Mudhune V , Gvetadze R , Girde S , Ndivo R , Angira F , Zeh C , Thomas T , Lecher SL . AIDS Behav 2017 22 (3) 918-928 Success of antiretroviral therapy depends on adherence to effective treatment. We evaluated four adherence methods and their correlation with immunological and virologic response among women receiving PMTCT. Univariable and multivariable analyses were used to assess how adherence by pill count (n = 463), self-report (n = 463), MEMS (n = 129) and plasma drug level (n = 89) was associated with viral load suppression within a 6 months period. Longitudinal analysis was performed to determine the correlation of CD4 cell count with each measure of adherence. For all measures of adherence, sustained viral suppression was less likely for participants in the lowest category of adherence. Although CD4 cell count increased substantially over time, there was no significant association with adherence by the methods. Multiple strategies can be used successfully to monitor treatment adherence. Persons with ≥95% adherence by any method used in this study were more likely to have a favorable treatment outcome. |
Progress with scale-up of HIV viral load monitoring - seven sub-Saharan African countries, January 2015-June 2016
Lecher S , Williams J , Fonjungo PN , Kim AA , Ellenberger D , Zhang G , Toure CA , Agolory S , Appiah-Pippim G , Beard S , Borget MY , Carmona S , Chipungu G , Diallo K , Downer M , Edgil D , Haberman H , Hurlston M , Jadzak S , Kiyaga C , MacLeod W , Makumb B , Muttai H , Mwangi C , Mwangi JW , Mwasekaga M , Naluguza M , Ng'Ang ALw , Nguyen S , Sawadogo S , Sleeman K , Stevens W , Kuritsky J , Hader S , Nkengasong J . MMWR Morb Mortal Wkly Rep 2016 65 (47) 1332-1335 The World Health Organization (WHO) recommends viral load testing as the preferred method for monitoring the clinical response of patients with human immunodeficiency virus (HIV) infection to antiretroviral therapy (ART). Viral load monitoring of patients on ART helps ensure early diagnosis and confirmation of ART failure and enables clinicians to take an appropriate course of action for patient management. When viral suppression is achieved and maintained, HIV transmission is substantially decreased, as is HIV-associated morbidity and mortality. CDC and other U.S. government agencies and international partners are supporting multiple countries in sub-Saharan Africa to provide viral load testing of persons with HIV who are on ART. This report examines current capacity for viral load testing based on equipment provided by manufacturers and progress with viral load monitoring of patients on ART in seven sub-Saharan countries (Cote d'Ivoire, Kenya, Malawi, Namibia, South Africa, Tanzania, and Uganda) during January 2015-June 2016. By June 2016, based on the target numbers for viral load testing set by each country, adequate equipment capacity existed in all but one country. During 2015, two countries tested >85% of patients on ART (Namibia [91%] and South Africa [87%]); four countries tested <25% of patients on ART. In 2015, viral suppression was >80% among those patients who received a viral load test in all countries except Cote d'Ivoire. Sustained country commitment and a coordinated global effort is needed to reach the goal for viral load monitoring of all persons with HIV on ART. |
Early diagnosis of HIV infection in infants - one Caribbean and six sub-Saharan African countries, 2011-2015
Diallo K , Kim AA , Lecher S , Ellenberger D , Beard RS , Dale H , Hurlston M , Rivadeneira M , Fonjungo PN , Broyles LN , Zhang G , Sleeman K , Nguyen S , Jadczak S , Abiola N , Ewetola R , Muwonga J , Fwamba F , Mwangi C , Naluguza M , Kiyaga C , Ssewanyana I , Varough D , Wysler D , Lowrance D , Louis FJ , Desinor O , Buteau J , Kesner F , Rouzier V , Segaren N , Lewis T , Sarr A , Chipungu G , Gupta S , Singer D , Mwenda R , Kapoteza H , Chipeta Z , Knight N , Carmona S , MacLeod W , Sherman G , Pillay Y , Ndongmo CB , Mugisa B , Mwila A , McAuley J , Chipimo PJ , Kaonga W , Nsofwa D , Nsama D , Mwamba FZ , Moyo C , Phiri C , Borget MY , Ya-Kouadio L , Kouame A , Adje-Toure CA , Nkengasong J . MMWR Morb Mortal Wkly Rep 2016 65 (46) 1285-1290 Pediatric human immunodeficiency virus (HIV) infection remains an important public health issue in resource-limited settings. In 2015, 1.4 million children aged <15 years were estimated to be living with HIV (including 170,000 infants born in 2015), with the vast majority living in sub-Saharan Africa. In 2014, 150,000 children died from HIV-related causes worldwide. Access to timely HIV diagnosis and treatment for HIV-infected infants reduces HIV-associated mortality, which is approximately 50% by age 2 years without treatment. Since 2011, the annual number of HIV-infected children has declined by 50%. Despite this gain, in 2014, only 42% of HIV-exposed infants received a diagnostic test for HIV, and in 2015, only 51% of children living with HIV received antiretroviral therapy (1). Access to services for early infant diagnosis of HIV (which includes access to testing for HIV-exposed infants and clinical diagnosis of HIV-infected infants) is critical for reducing HIV-associated mortality in children aged <15 years. Using data collected from seven countries supported by the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), progress in the provision of HIV testing services for early infant diagnosis was assessed. During 2011-2015, the total number of HIV diagnostic tests performed among HIV-exposed infants within 6 weeks after birth (tests for early infant diagnosis of HIV), as recommended by the World Health Organization (WHO) increased in all seven countries (Cote d'Ivoire, the Democratic Republic of the Congo, Haiti, Malawi, South Africa, Uganda, and Zambia); however, in 2015, the rate of testing for early infant diagnosis among HIV-exposed infants was <50% in five countries. HIV positivity among those tested declined in all seven countries, with three countries (Cote d'Ivoire, the Democratic Republic of the Congo, and Uganda) reporting >50% decline. The most common challenges for access to testing for early infant diagnosis included difficulties in specimen transport, long turnaround time between specimen collection and receipt of results, and limitations in supply chain management. Further reductions in HIV mortality in children can be achieved through continued expansion and improvement of services for early infant diagnosis in PEPFAR-supported countries, including initiatives targeted to reach HIV-exposed infants, ensure access to programs for early infant diagnosis of HIV, and facilitate prompt linkage to treatment for children diagnosed with HIV infection. |
Evaluation of the impact of National HIV Testing Day - United States, 2011-2014
Lecher SL , Hollis N , Lehmann C , Hoover KW , Jones A , Belcher L . MMWR Morb Mortal Wkly Rep 2016 65 (24) 613-8 Human immunodeficiency virus (HIV) testing is the first step in the continuum of HIV prevention, care, and treatment services, without which, gaps in HIV diagnosis cannot be addressed. National HIV testing campaigns are useful for promoting HIV testing among large numbers of persons. However, the impact of such campaigns on identification of new HIV-positive diagnoses is unclear. To assess whether National HIV Testing Day (NHTD, June 27) was effective in identifying new HIV-positive diagnoses, National HIV Prevention Program Monitoring and Evaluation (NHM&E) data for CDC-funded testing events conducted during 2011-2014 were analyzed. The number of HIV testing events and new HIV-positive diagnoses during June of each year were compared with those in other months by demographics and target populations. The number of HIV testing events and new HIV-positive diagnoses were also compared for each day leading up to and after NHTD in June and July of each year. New HIV-positive diagnoses peaked in June relative to other months and specifically on NHTD. During 2011-2014, NHTD had a substantial impact on increasing the number of persons who knew their HIV status and in diagnosing new HIV infections. NHTD also proved effective in reaching persons at high risk disproportionately affected by HIV, including African American (black) men, men who have sex with men (MSM), and transgender persons. Promoting NHTD can successfully increase the number of new HIV-positive diagnoses, including HIV infections among target populations at high risk for HIV infection. |
Anaemia in HIV-infected pregnant women receiving triple antiretroviral combination therapy for prevention of mother-to-child transmission: a secondary analysis of the Kisumu breastfeeding study (KiBS)
Odhiambo C , Zeh C , Angira F , Opollo V , Akinyi B , Masaba R , Williamson JM , Otieno J , Mills LA , Lecher SL , Thomas TK . Trop Med Int Health 2016 21 (3) 373-84 OBJECTIVE: The prevalence of anaemia during pregnancy is estimated to be 35-75% in sub-Saharan Africa and is associated with an increased risk of maternal mortality. We evaluated the frequency and factors associated with anaemia in HIV-infected women undergoing antiretroviral (ARV) therapy for prevention of mother-to-child transmission (PMTCT) enrolled in The Kisumu Breastfeeding Study 2003-2009. METHODS: Maternal haematological parameters were monitored from 32 to 34 weeks of gestation to 2 years post-delivery among 522 enrolled women. Clinical and laboratory assessments for causes of anaemia were performed, and appropriate management was initiated. Anaemia was graded using the National Institutes of Health Division of AIDS 1994 Adult Toxicity Tables. Data were analysed using SAS software, v 9.2. The Wilcoxon two-sample rank test was used to compare groups. A logistic regression model was fitted to describe the trend in anaemia over time. RESULTS: At enrolment, the prevalence of any grade anaemia (Hb < 9.4 g/dl) was 61.8%, but fell during ARV therapy, reaching a nadir (7.4%) by 6 months post-partum. A total of 41 women (8%) developed severe anaemia (Hb < 7 g/dl) during follow-up; 2 (4.9%) were hospitalised for blood transfusion, whereas 3 (7.3%) were transfused while hospitalised (for delivery). The greatest proportion of severe anaemia events occurred around delivery (48.8%; n = 20). Anaemia (Hb ≥ 7 and < 9.4 g/dl) at enrolment was associated with severe anaemia at delivery (OR 5.87; 95% CI: 4.48, 7.68, P < 0.01). Few cases of severe anaemia coincided with clinical malaria (24.4%; n = 10) and helminth (7.3%; n = 3) infections. CONCLUSION: Resolution of anaemia among most participants during study follow-up was likely related to receipt of ARV therapy. Efforts should be geared towards addressing common causes of anaemia in HIV-infected pregnant women, prioritising initiation of ARV therapy and management of peripartum blood loss. |
Linkage and referral to HIV and other medical and social services: A focused literature review for sexually transmitted disease prevention and control programs
Carter MW , Wu H , Cohen S , Hightow-Weidman L , Lecher SL , Peters PJ . Sex Transm Dis 2016 43 S76-82 BACKGROUND: Sexually transmitted disease (STD) program and clinic staff play an important role in providing linkage and referrals to programs and services that address the complex medical and psychosocial needs of their clients. We synthesized recent published literature related to effective practices for linkage to care for HIV and referral to other medical and social services. METHODS: Three PubMed searches were conducted to identify relevant studies published since 2004 on (1) linkage to HIV care, (2) referral within STD clinical contexts, and (3) (review articles only) referral practices among all medical specialties. Systematic review procedures were not used. RESULTS: Thirty-three studies were included in this review. Studies highlight the limited value of passive referral practices and the increased effectiveness of active referral and linkage practices. Numerous studies on linkage to HIV care suggest that case management approaches, cultural-linguistic concordance between linkage staff and clients, and structural features such as colocation facilitate timely linkage to care. Integration of other medical and social services such as family planning and alcohol screening services into STD settings may be optimal but resource-intensive. Active referral practices such as having a written referral protocols and agreements, using information technology to help transfer information between providers, and making appointments for clients may offer some benefit. Few studies included information on program costs associated with linkage and referral. CONCLUSIONS: Recent literature provides some guideposts for STD program and clinical staff to use in determining their approach to helping link and refer clients to needed care. Much experience with these issues within STD services remains unpublished, and key gaps in the literature remain. |
Scale-up of HIV viral load monitoring - seven Sub-Saharan African countries
Lecher S , Ellenberger D , Kim AA , Fonjungo PN , Agolory S , Borget MY , Broyles L , Carmona S , Chipungu G , De Cock KM , Deyde V , Downer M , Gupta S , Kaplan JE , Kiyaga C , Knight N , MacLeod W , Makumbi B , Muttai H , Mwangi C , Mwangi JW , Mwasekaga M , Ng'Ang ALw , Pillay Y , Sarr A , Sawadogo S , Singer D , Stevens W , Toure CA , Nkengasong J . MMWR Morb Mortal Wkly Rep 2015 64 (46) 1287-90 To achieve global targets for universal treatment set forth by the Joint United Nations Programme on human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) (UNAIDS), viral load monitoring for HIV-infected persons receiving antiretroviral therapy (ART) must become the standard of care in low- and middle-income countries (LMIC) (1). CDC and other U.S. government agencies, as part of the President's Emergency Plan for AIDS Relief, are supporting multiple countries in sub-Saharan Africa to change from the use of CD4 cell counts for monitoring of clinical response to ART to the use of viral load monitoring, which is the standard of care in developed countries. Viral load monitoring is the preferred method for immunologic monitoring because it enables earlier and more accurate detection of treatment failure before immunologic decline. This report highlights the initial successes and challenges of viral load monitoring in seven countries that have chosen to scale up viral load testing as a national monitoring strategy for patients on ART in response to World Health Organization (WHO) recommendations. Countries initiating viral load scale-up in 2014 observed increases in coverage after scale-up, and countries initiating in 2015 are anticipating similar trends. However, in six of the seven countries, viral load testing coverage in 2015 remained below target levels. Inefficient specimen transport, need for training, delays in procurement and distribution, and limited financial resources to support scale-up hindered progress. Country commitment and effective partnerships are essential to address the financial, operational, technical, and policy challenges of the rising demand for viral load monitoring. |
Cost analysis of a novel HIV testing strategy in community pharmacies and retail clinics
Lecher SL , Shrestha RK , Botts LW , Alvarez J , Moore JH Jr , Thomas V , Weidle PJ . J Am Pharm Assoc (2003) 2015 55 (5) 488-92 OBJECTIVE: To document the cost of implementing point-of-care (POC) human immunodeficiency virus (HIV) rapid testing in busy community pharmacies and retail clinics. Providing HIV testing services in community pharmacies and retail clinics is an innovative way to expand HIV testing. The cost of implementing POC HIV rapid testing in a busy retail environment needs to be documented to provide program and policy leaders with adequate information for planning and budgeting. DESIGN: Cost analysis from a pilot project that provided confidential POC HIV rapid testing services in community pharmacies and retail clinics. SETTING: The pharmacy sites were operated under several different ownership structures (for-profit, nonprofit, sole proprietorship, corporation, public, and private) in urban and rural areas. We included data from the initial six sites that participated in the project. We collected the time spent by pharmacy and retail clinic staff for pretest and posttest counseling in an activity log for time-in-motion for each interaction. PARTICIPANTS: Pharmacists and retail clinic staff. INTERVENTION: HIV rapid testing. MAIN OUTCOME MEASURES: The total cost was calculated to include costs of test kits, control kits, shipping, test supplies, training, reporting, program administration, and advertising. RESULTS: The six sites trained 22 staff to implement HIV testing. A total of 939 HIV rapid tests were conducted over a median time of 12 months, of which 17 were reactive. Median pretest counseling time was 2 minutes. Median posttest counseling time was 2 minutes for clients with a nonreactive test and 10 minutes for clients with a reactive test. The average cost per person tested was an estimated $47.21. When we considered only recurrent costs, the average cost per person tested was $32.17. CONCLUSIONS: Providing POC HIV rapid testing services required a modest amount of staff time and costs that are comparable to other services offered in these settings. HIV testing in pharmacies and retail clinics can provide an additional alternative venue for increasing the availability and accessibility of HIV testing services in the United States. |
Determinants and experiences of repeat pregnancy among HIV-positive Kenyan women - a mixed-methods analysis
Akelo V , McLellan-Lemal E , Toledo L , Girde S , Borkowf CB , Ward L , Ondenge K , Ndivo R , Lecher SL , Mills LA , Thomas TK . PLoS One 2015 10 (6) e0131163 OBJECTIVE: To identify factors associated with repeat pregnancy subsequent to an index pregnancy among women living with HIV (WLWH) in western Kenya who were enrolled in a 24-month phase-II clinical trial of triple-ART prophylaxis for prevention of mother-to-child transmission, and to contextualize social and cultural influences on WLWH's reproductive decision making. METHODS: A mixed-methods approach was used to examine repeat pregnancy within a 24 month period after birth. Counselor-administered questionnaires were collected from 500 WLWH. Forty women (22 with a repeat pregnancy; 18 with no repeat pregnancy) were purposively selected for a qualitative interview (QI). Simple and multiple logistic regression analyses were performed for quantitative data. Thematic coding and saliency analysis were undertaken for qualitative data. RESULTS: Eighty-eight (17.6%) women had a repeat pregnancy. Median maternal age was 23 years (range 15-43 years) and median gestational age at enrollment was 34 weeks. In multiple logistic regression analyses, living in the same compound with a husband (adjusted odds ratio (AOR): 2.33; 95% confidence interval (CI): 1.14, 4.75) was associated with increased odds of repeat pregnancy (p ≤ 0.05). Being in the 30-43 age group (AOR: 0.25; 95% CI: 0.07, 0.87), having talked to a partner about family planning (FP) use (AOR: 0.53; 95% CI: 0.29, 0.98), and prior usage of FP (AOR: 0.45; 95% CI: 0.25, 0.82) were associated with a decrease in odds of repeat pregnancy. QI findings centered on concerns about modern contraception methods (side effects and views that they 'ruined the womb') and a desire to have the right number of children. Religious leaders, family, and the broader community were viewed as reinforcing cultural expectations for married women to have children. Repeat pregnancy was commonly attributed to contraception failure or to lack of knowledge about post-delivery fertility. CONCLUSIONS: In addition to cultural context, reproductive health programs for WLWH may need to address issues related to living circumstances and the possibility that reproductive-decision making may extend beyond the woman and her partner. |
HIV testing in community pharmacies and retail clinics: a model to expand access to screening for HIV infection
Weidle PJ , Lecher S , Botts LW , Jones L , Spach DH , Alvarez J , Jones R , Thomas V . J Am Pharm Assoc (2003) 2014 54 (5) 486-92 OBJECTIVE: To test the feasibility of offering rapid point-of-care human immunodeficiency virus (HIV) testing at community pharmacies and retail clinics. DESIGN: Pilot program to determine how to implement confidential HIV testing services in community pharmacies and retail clinics. SETTING: 21 community pharmacies and retail clinics serving urban and rural patients in the United States, from August 2011 to July 2013. PARTICIPANTS: 106 community pharmacy and retail clinic staff members. INTERVENTION: A model was developed to implement confidential HIV counseling and testing services using community pharmacy and retail clinic staff as certified testing providers, or through collaborations with organizations that provide HIV testing. Training materials were developed and sites selected that serve patients from urban and rural areas to pilot test the model. Each site established a relationship with its local health department for HIV testing policies, developed referral lists for confirmatory HIV testing/care, secured a CLIA Certificate of Waiver, and advertised the service. Staff were trained to perform a rapid point-of-care HIV test on oral fluid, and provide patients with confidential test results and information on HIV. Patients with a preliminary positive result were referred to a physician or health department for confirmatory testing and, if needed, HIV clinical care. MAIN OUTCOME MEASURES: Number of HIV tests completed and amount of time required to conduct testing. RESULTS: The 21 participating sites administered 1,540 HIV tests, with 1,087 conducted onsite by staff during regular working hours and 453 conducted at 37 different HIV testing events (e.g., local health fairs). The median amount of time required for pretest counseling/consent, waiting for test results, and posttest counseling was 4, 23, and 3 minutes, respectively. A majority of the sites (17) said they planned to continue HIV testing after the project period ended and would seek assistance or support from the local health department, a community-based organization, or an AIDS service organization. CONCLUSION: This pilot project established HIV testing in several community pharmacies and retail clinics to be a feasible model for offering rapid, point-of-care HIV testing. It also demonstrated the willingness and ability of staff at community pharmacies and retail clinics to provide confidential HIV testing to patients. Expanding this model to additional sites and evaluating its feasibility and effectiveness may serve unmet needs in urban and rural settings. |
Strengthening national laboratory health systems in the Caribbean region
Alemnji GA , Branch S , Best A , Kalou M , Parekh B , Waruiru W , Milstrey E , Conn W , Nkengasong JN , Lecher S . Glob Public Health 2012 7 (6) 648-60 The President's Emergency Plan for AIDS Relief (PEPFAR) programme for the Caribbean Region was established in 2008 to address health system challenges, including fragile laboratory services and systems. The laboratory component of this programme consisted of several phases: assessment of laboratory needs of all 12 countries engaged in the programme; addressing gaps identified during the assessment; and monitoring and evaluation of the progress achieved. After one year of PEPFAR collaboration with national governments and other partners, laboratory services and systems greatly improved. Some of the milestones include: (1) the accreditation of a public laboratory; (2) improved access to HIV diagnosis with faster turnaround time; (3) establishment of capacity for platforms for DNA PCR, viral load and HIV drug resistance; (4) development of the laboratory workforce; and (5) establishment of a framework for implementation of sustainable quality management systems for laboratory accreditation. The progress recorded in strengthening laboratory health systems after one year of initiating this collaboration shows that with a rigorous initial assessment, programme design and intervention and strategic partnership, national laboratory health systems can be greatly enhanced to support programme implementation. Continued collaboration and country leadership is critical to create an integrated and sustainable laboratory network in the Caribbean. |
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