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Wang L, Muwonge TR, Simoni JM, Nambi F, Nakabugo L, Kibuuka J, Thomas D, Katz IT, Feutz E, Thomas KK, Ware NC, Wyatt MA, Kadama H, Mujugira A, Heffron R. Behavioral Modeling and its Association with PrEP and ART Use in Ugandan HIV-Serodifferent Couples. AIDS Behav 2024; 28:1719-1730. [PMID: 38361169 PMCID: PMC11069469 DOI: 10.1007/s10461-024-04286-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Integrating Pre-Exposure Prophylaxis (PrEP) delivery into Antiretroviral Therapy (ART) programs bridges the Human Immunodeficiency Virus (HIV) prevention gap for HIV-serodifferent couples prior to the partner living with HIV achieving viral suppression. Behavioral modeling is one mechanism that could explain health-related behavior among couples, including those using antiretroviral medications, but few tools exist to measure the extent to which behavior is modeled. Using a longitudinal observational design nested within a cluster randomized trial, this study examined the factor structure and assessed the internal consistency of a novel 24-item, four-point Likert-type scale to measure behavioral modeling and the association of behavioral modeling with medication-taking behaviors among heterosexual, cis-gender HIV-serodifferent couples. In 149 couples enrolled for research, a five-factor model provided the best statistical and conceptual fit, including attention to partner behavior, collective action, role modeling, motivation, and relationship quality. Behavioral modeling was associated with medication-taking behaviors among members of serodifferent couples. Partner modeling of ART/PrEP taking could be an important target for assessment and intervention in HIV prevention programs for HIV serodifferent couples.
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Affiliation(s)
- Liying Wang
- Department of Psychology, University of Washington, Seattle, WA, USA
| | | | - Jane M Simoni
- Department of Psychology, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
- Behavioral and Social Sciences Research, NIH, Bethesda, Maryland, USA
- Office of Behavioral and Social Sciences Research (OBSSR), NIH, Bethesda, Maryland, USA
- Division of Program Coordination, Planning and Strategic Initiatives (DPCPSI), NIH, Bethesda, Maryland, USA
- National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Florence Nambi
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Joseph Kibuuka
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Dorothy Thomas
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Ingrid T Katz
- Department of Global Health and Social Medicine, Harvard Medical School, 25 Shattuck St, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, Massachusetts, USA
| | - Erika Feutz
- Department of Global Health, University of Washington, Seattle, WA, USA
| | | | - Norma C Ware
- Department of Global Health and Social Medicine, Harvard Medical School, 25 Shattuck St, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, Massachusetts, USA
| | - Monique A Wyatt
- Department of Global Health and Social Medicine, Harvard Medical School, 25 Shattuck St, Boston, Massachusetts, USA
- Harvard Global, Cambridge, MA, USA
| | | | - Andrew Mujugira
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Renee Heffron
- Department of Global Health, University of Washington, Seattle, WA, USA.
- Department of Medicine, University of Alabama at Birmingham, 845 19th Street South Bevill Biomedical Research Building, Room 256D, Birmingham, AL, 35294-2170, USA.
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Wyatt MA, Pisarski EE, Nalumansi A, Kasiita V, Kamusiime B, Nalukwago GK, Thomas D, Muwonge TR, Mujugira A, Heffron R, Ware NC. How PrEP delivery was integrated into public ART clinics in central Uganda: A qualitative analysis of implementation processes. PLOS GLOBAL PUBLIC HEALTH 2024; 4:e0002916. [PMID: 38452111 PMCID: PMC10919847 DOI: 10.1371/journal.pgph.0002916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 01/08/2024] [Indexed: 03/09/2024]
Abstract
Tailored delivery strategies are important for optimizing the benefit and overall reach of PrEP in sub-Saharan Africa. An integrated approach of delivering time-limited PrEP in combination with ART to serodifferent couples encourages PrEP use in the HIV-negative partner as a bridge to sustained ART use. Although PrEP has been delivered in ART clinics for many years, the processes involved in integrating PrEP into ART services are not well understood. The Partners PrEP Program was a stepped-wedge cluster randomized trial of integrated PrEP and ART delivery for HIV serodifferent couples in 12 public health facilities in central Uganda (Clinicaltrials.gov NCT03586128). Using qualitative data, we identified and characterized key implementation processes that explain how PrEP delivery was integrated into existing ART services in the Partners PrEP Program. In-depth interviews were conducted with a purposefully-selected sub-sample of 83 members of 42 participating serodifferent couples, and with 36 health care providers implementing integrated delivery. High quality training, technical supervision, and teamwork were identified as key processes supporting providers to implement PrEP delivery. Interest in the PrEP program was promoted through the numerous ways health care providers made integrated ART and PrEP meaningful for serodifferent couples, including tailored counseling messages, efforts to build confidence in integrated delivery, and strategies to create demand for PrEP. Couples in the qualitative sample responded positively to providers' efforts to promote the integrated strategy. HIV-negative partners initiated PrEP to preserve their relationships, which inspired their partners living with HIV to recommit to ART adherence. Lack of disclosure among couples and poor retention on PrEP were identified as barriers to implementation of the PrEP program. A greater emphasis on understanding the meaning of PrEP for users and its contribution to implementation promises to strengthen future research on PrEP scale up in sub-Saharan Africa.
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Affiliation(s)
- Monique A. Wyatt
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard Global, Cambridge, Massachusetts, United States of America
| | - Emily E. Pisarski
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
| | | | - Vicent Kasiita
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Brenda Kamusiime
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Dorothy Thomas
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | | | - Andrew Mujugira
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Renee Heffron
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Norma C. Ware
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
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Frank HE, Cruden G, Crane ME. Private Practice, Private Insurance, and Private Pay Mental Health Services: An Understudied Area in Implementation Science. ADMINISTRATION AND POLICY IN MENTAL HEALTH AND MENTAL HEALTH SERVICES RESEARCH 2024; 51:1-6. [PMID: 37880471 PMCID: PMC11065429 DOI: 10.1007/s10488-023-01306-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2023] [Indexed: 10/27/2023]
Abstract
The private practice setting is understudied. Private practice includes settings in which mental health providers are unaffiliated with healthcare and hospital systems. Private practices may accept insurance (private and sometimes public) or no insurance (private pay). Increasing attention to this setting is critical to facilitating equitable access to mental health services, especially given enduring mental health workforce shortages and service waitlists. Further, there have been recent federal government calls to increase mental health and physical healthcare parity and to reduce out-of-pocket patient costs. Implementation science theories, models, frameworks, and methods can help illuminate determinants of private practice service availability and quality (e.g., evidence-based intervention delivery with fidelity), guide evaluation of implementation outcomes such as cost and acceptability of interventions to patients, and identify strategies to mitigate barriers to high-quality, affordable private practice services. This article suggests research questions to begin filling the private practice research gap using an implementation determinants framework - the Consolidated Framework for Implementation Research (CFIR) 2.0. Research questions are proposed across CFIR domains: outer context (e.g., policies impacting whether private practices accept insurance); individuals involved (e.g., provider professional experiences; direct-to-consumer marketing impacts on evidence-based intervention demand); innovation characteristics (e.g., appropriateness for private practice); inner context (e.g., organizational characteristics); and implementation processes (e.g., innovation sustainability). The illustrative research questions aim to begin a conversation amongst researchers and funders. Bringing an implementation science lens to the private practice context has the potential to improve the quality and affordability of mental health care for many.
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Affiliation(s)
- Hannah E Frank
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Gracelyn Cruden
- Chestnut Health Systems, Lighthouse Institute-Oregon Group, 1255 Pearl St, Eugene, OR, 97401, USA.
| | - Margaret E Crane
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
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Inguane C, Gimbel S, Soi C, Tavede E, Murgorgo F, Isidoro X, Sidat Y, Nassiaca R, Coutinho J, Cruz M, Agostinho M, Amaral F, Dinis A, Ábsjörnsdóttir K, Crocker J, Manaca N, Ramiro I, Pfeiffer J, de Fátima Cuembelo M, Sherr K. Assessing drivers of implementing "Scaling-up the Systems Analysis and Improvement Approach" for Prevention of Mother-to-Child HIV Transmission in Mozambique (SAIA-SCALE) over implementation waves. Implement Sci Commun 2023; 4:84. [PMID: 37488632 PMCID: PMC10364357 DOI: 10.1186/s43058-023-00422-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 04/01/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND The Systems Analysis and Improvement Approach (SAIA) is an evidence-based package of systems engineering tools originally designed to improve patient flow through the prevention of Mother-to-Child transmission of HIV (PMTCT) cascade. SAIA is a potentially scalable model for maximizing the benefits of universal antiretroviral therapy (ART) for mothers and their babies. SAIA-SCALE was a stepped wedge trial implemented in Manica Province, Mozambique, to evaluate SAIA's effectiveness when led by district health managers, rather than by study nurses. We present the results of a qualitative assessment of implementation determinants of the SAIA-SCALE strategy during two intensive and one maintenance phases. METHODS We used an extended case study design that embedded the Consolidated Framework for Implementation Research (CFIR) to guide data collection, analysis, and interpretation. From March 2019 to April 2020, we conducted in-depth individual interviews (IDIs) and focus group discussions (FGDs) with district managers, health facility maternal and child health (MCH) managers, and frontline nurses at 21 health facilities and seven districts of Manica Province (Chimoio, Báruè, Gondola, Macate, Manica, Sussundenga, and Vanduzi). RESULTS We included 85 participants: 50 through IDIs and 35 from three FGDs. Most study participants were women (98%), frontline nurses (49.4%), and MCH health facility managers (32.5%). An identified facilitator of successful intervention implementation (regardless of intervention phase) was related to SAIA's compatibility with organizational structures, processes, and priorities of Mozambique's health system at the district and health facility levels. Identified barriers to successful implementation included (a) inadequate health facility and road infrastructure preventing mothers from accessing MCH/PMTCT services at study health facilities and preventing nurses from dedicating time to improving service provision, and (b) challenges in managing intervention funds. CONCLUSIONS The SAIA-SCALE qualitative evaluation suggests that the scalability of SAIA for PMTCT is enhanced by its fit within organizational structures, processes, and priorities at the primary level of healthcare delivery and health system management in Mozambique. Barriers to implementation that impact the scalability of SAIA include district-level financial management capabilities and lack of infrastructure at the health facility level. SAIA cannot be successfully scaled up to adequately address PMTCT needs without leveraging central-level resources and priorities. TRIAL REGISTRATION ClinicalTrials.gov, NCT03425136 . Registered on 02/06/2018.
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Affiliation(s)
- Celso Inguane
- Department of Global Health, University of Washington, Seattle, WA, USA.
- Hans Rosling Center for Population Health, 700D.4, University of Washington, Box 351620, 3980 15Th Ave. NE, Seattle, WA, 98105, USA.
- Cooperativa de Ideias e Pesquisa em Saúde - CO-IDEAS, Maputo City, Mozambique.
| | - Sarah Gimbel
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Child, Family and Population Health Nursing, University of Washington, Seattle, WA, USA
| | - Caroline Soi
- Department of Global Health, University of Washington, Seattle, WA, USA
| | | | | | | | - Yaesh Sidat
- Manica Province Health Directorate, Chimoio, Mozambique
| | | | - Joana Coutinho
- Comité Para a Saúde de Moçambique, Maputo City, Mozambique
| | - Maria Cruz
- Comité Para a Saúde de Moçambique, Maputo City, Mozambique
| | - Mery Agostinho
- Comité Para a Saúde de Moçambique, Maputo City, Mozambique
| | | | - Aneth Dinis
- Department of Global Health, University of Washington, Seattle, WA, USA
- National Department of Public Health, Ministry of Health, Maputo City, Mozambique
| | - Kristjana Ábsjörnsdóttir
- Center for Public Health Sciences, University of Iceland, Reykjavik, Iceland
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Jonny Crocker
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Nélia Manaca
- Health Alliance International, Beira, Mozambique
| | - Isaias Ramiro
- Comité Para a Saúde de Moçambique, Maputo City, Mozambique
| | - James Pfeiffer
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Anthropology, University of Washington, Seattle, WA, USA
| | - Maria de Fátima Cuembelo
- Department of Community Health, Faculty of Medicine, Universidade Eduardo Mondlane, Maputo City, Mozambique
| | - Kenneth Sherr
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Department of Industrial & Systems Engineering, University of Washington, Seattle, WA, USA
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Nakambale HN, Roche SD, Mogere P, Omollo V, Kuo AP, Stergachis A, Baeten JM, Bukusi E, Ngure K, Mugambi ML, Ortblad KF. Barriers to and strategies for early implementation of pharmacy-delivered HIV PrEP services in Kenya: An analysis of routine data. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1023568. [PMID: 36895656 PMCID: PMC9989195 DOI: 10.3389/frph.2023.1023568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/20/2023] [Indexed: 02/23/2023] Open
Abstract
Background For individuals who face challenges accessing clinic-based HIV pre-exposure prophylaxis (PrEP), differentiated service delivery models are needed to expand access and reach. During a pilot study testing a novel pharmacy-delivered oral PrEP model in Kenya, we used routine programmatic data to identify early implementation barriers and actions that providers and study staff took in response to the barriers. Methods We trained pharmacy providers at five private pharmacies in Kisumu and Kiambu Counties to initiate and continue clients at risk of HIV acquisition on PrEP for a fee of 300 KES per visit (∼$3 USD) using a prescribing checklist with remote clinician oversight. Research assistants stationed at the pharmacies completed weekly observation reports of pharmacy-delivered PrEP services using a structured template. We analyzed reports from the first 6 month of implementation using content analysis and identified multi-level early implementation barriers and actions taken to address these. We then organized the identified barriers and actions according to the Consolidated Framework for Implementation Research (CFIR). Results From November 2020 to May 2021, research assistants completed 74 observation reports (∼18/pharmacy). During this period, pharmacy providers screened 496 potential PrEP clients, identified 425 as eligible for pharmacy-delivered PrEP services, and initiated 230 (54%) on PrEP; 125 of 197 (63%) clients eligible for PrEP continuation refilled PrEP. We identified the following early implementation barriers to pharmacy-delivered PrEP services (by CFIR domain): high costs to clients (intervention characteristics), client discomfort discussing sexual behaviors and HIV testing with providers (outer setting), provider frustrations that PrEP delivery was time-consuming and disruptive to their workflow (inner setting), and provider hesitancy to deliver PrEP due to concerns about encouraging sexual promiscuity (characteristics of individuals). To help address these, pharmacy providers implemented a self-screening option for behavioral HIV risk assessment for prospective PrEP clients, allowed flexible appointment scheduling, and conducted pharmacy PrEP trainings for newly hired staff. Conclusion Our study provides insight into early barriers to implementing pharmacy-delivered PrEP services in Kenya and potential actions to mitigate these barriers. It also demonstrates how routine programmatic data can be used to understand the early implementation process.
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Affiliation(s)
- Hilma N. Nakambale
- Department of Global Health, University of Washington, Seattle, WA, United States
| | - Stephanie D. Roche
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Peter Mogere
- Partners in Health Research and Development, Center for Clinical Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Victor Omollo
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Alexandra P. Kuo
- Department of Pharmacy, University of Washington, Seattle, WA, United States
| | - Andy Stergachis
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Pharmacy, University of Washington, Seattle, WA, United States
| | - Jared M. Baeten
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Epidemiology, University of Washington, Seattle, WA, United States
- Department of Medicine, University of Washington, Seattle, WA, United States
- Gilead Sciences, Foster City, CA, United States
| | - Elizabeth Bukusi
- Department of Global Health, University of Washington, Seattle, WA, United States
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, United States
| | - Kenneth Ngure
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Community Health, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | | | - Katrina F. Ortblad
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
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Heffron R, Muwonge TR, Thomas KK, Nambi F, Nakabugo L, Kibuuka J, Thomas D, Feutz E, Meisner A, Ware NC, Wyatt MA, Simoni JM, Katz IT, Kadama H, Baeten JM, Mujugira A. PrEP uptake and HIV viral suppression when PrEP is integrated into Ugandan ART clinics for HIV-negative members of HIV-serodifferent couples: A stepped wedge cluster randomized trial. EClinicalMedicine 2022; 52:101611. [PMID: 35990584 PMCID: PMC9386395 DOI: 10.1016/j.eclinm.2022.101611] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/15/2022] [Accepted: 07/22/2022] [Indexed: 11/11/2022] Open
Abstract
Background Global scale-up of HIV pre-exposure prophylaxis (PrEP) includes services to HIV-negative people in partnerships with people living with HIV (serodifferent couples). Data are needed on HIV outcomes, including uptake and adherence to PrEP and antiretroviral treatment (ART), to describe the impact of integrating PrEP into an existing HIV program. Methods Using a stepped-wedge cluster randomized trial design, we launched PrEP delivery for HIV-negative members of serodifferent couples in Uganda by integrating PrEP into existing ART programs for people living with HIV. The program provided PrEP training for ART providers, ongoing technical assistance, and a provisional supply chain mechanism for PrEP medication. Primary data on PrEP initiation, PrEP refills, ART initiation, and HIV viremia at 6 months (measured at 42-270 days) were collected through data abstraction of medical records from HIV-serodifferent couples sequentially enrolling at the ART clinics. Modified Poisson regression models, controlling for time and cluster, compared viral suppression (<1000 copies/ml) before and after launch of the PrEP program. This trial was registered at ClinicalTrials.gov, NCT03586128. Findings From June 1, 2018-December 15, 2020, 1,381 HIV-serodifferent couples were enrolled across 12 ART clinics in Kampala and Wakiso, Uganda, including 730 enrolled before and 651 after the launch of PrEP delivery. During the baseline period, 99.4% of partners living with HIV initiated ART and 85.0% were virally suppressed at 6 months. Among HIV-negative partners enrolled after PrEP launched, 81.0% (527/651) initiated PrEP within 90 days of enrolling; among these 527, 11.2% sought a refill 6 months later. In our powered intent-to-treat analysis, 82.1% and 76.7% of partners living with HIV were virally suppressed, respectively, which was not a statistically significant difference (RR=0.94, 95% CI: 0.82-1.07) and was stable across sensitivity analyses. Interpretation Integration of PrEP into ART clinics reached a high proportion of people in HIV-serodifferent relationships and did not improve the already high frequency of HIV viral suppression among partners living with HIV. Funding National Institute of Mental Health (R01MH110296).
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Affiliation(s)
- Renee Heffron
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
- University of Alabama Birmingham, Birmingham, Alabama, USA
| | | | - Katherine K. Thomas
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
| | - Florence Nambi
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Joseph Kibuuka
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Dorothy Thomas
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
| | - Erika Feutz
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
| | - Allison Meisner
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
- Fred Hutch, Vaccine and Infectious Disease Division, 1100 Fairview Ave N, Seattle, Washington, USA
| | - Norma C. Ware
- Harvard Medical School, 25 Shattuck St., Boston, Massachusetts, USA
- Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, Massachusetts, USA
| | - Monique A. Wyatt
- Harvard Medical School, 25 Shattuck St., Boston, Massachusetts, USA
- Harvard Global, Cambridge, Massachusetts, USA
| | - Jane M. Simoni
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
| | - Ingrid T. Katz
- Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, Massachusetts, USA
| | | | - Jared M. Baeten
- University of Washington, 325 Ninth Avenue, Box 359927 Seattle, Washington, USA
- Gilead Sciences LLC, Foster City, California, USA
| | - Andrew Mujugira
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
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