Mwanza Intervention Trials Unit, Mwanza Intervention Trials Unit, Kenya Medical Research Institute (KEMRI), UVRI-IAVI HIV Vaccine Program, London School of Hygiene & Tropical Medicine - Uganda Research Unit, International AIDS Vaccine Initiative, New York, Kenya Medical Research Institute (KEMRI), National Institute for Medical Research (NIMR) - Mwanza Medical Research Centre, Government of Uganda - Uganda Virus Research Institute (UVRI), UVRI-IAVI HIV Vaccine Program, International AIDS Vaccine Initiative, Kenya Medical Research Institute (KEMRI), UVRI-IAVI HIV Vaccine Program, Government of Uganda - Uganda Virus Research Institute (UVRI), International AIDS Vaccine Initiative, International AIDS Vaccine Initiative, Government of Uganda - Uganda Virus Research Institute (UVRI), Mwanza Intervention Trials Unit, London School of Hygiene & Tropical Medicine - Department of Global Health and Development and Mwanza Intervention Trials Unit

University of Colorado Denver, University of Colorado, Aurora - Department of Pediatrics, University of Washington - School of Medicine, affiliation not provided to SSRN, University of Washington - School of Medicine, University of California, Berkeley, University of California, San Francisco (UCSF) - Department of Epidemiology and Biostatistics, University of North Carolina at Chapel Hill, Johns Hopkins University, University of Washington - School of Medicine, University of Washington - School of Medicine, University of Washington - School of Medicine, University of Washington - School of Medicine, University of Washington - School of Medicine, Kenya Medical Research Institute (KEMRI), Kenya Medical Research Institute (KEMRI) and affiliation not provided to SSRN