Aurum Institute, South African Medical Research Council - Biostatistics Research Unit, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Chris Hani Baragwanath Academic Hospital - Perinatal HIV Research Unit, Aurum Institute, The Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, Aurum Institute, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, University of the Witwatersrand, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, Government of India - Translational Health Science & Technology Institute (THSTI), Government of India - Translational Health Science & Technology Institute (THSTI), Government of India - Translational Health Science & Technology Institute (THSTI), Aurum Institute, South African Medical Research Council, South African Medical Research Council, Aurum Institute, Aurum Institute, Aurum Institute and Independent

Johns Hopkins University - Division of Clinical Pharmacology, Aurum Institute, Aurum Institute, Aurum Institute, Johns Hopkins University, University of California, San Francisco (UCSF) - Department of Bioengineering and Therapeutic Sciences, Johns Hopkins University - Bloomberg School of Public Health, University of Cape Town (UCT), Aurum Institute, Aurum Institute, Aurum Institute, University of California, San Francisco (UCSF) - Department of Bioengineering and Therapeutic Sciences, Vanderbilt University - Medical Center, Johns Hopkins University, Aurum Institute, Independent and Independent

University of Washington - Department of Global Health, University of Washington - Department of Global Health, University of Washington - Department of Global Health, University of the Witwatersrand - Reproductive Health and HIV Research Unit (RHRU), University of Washington - Department of Global Health, FHI 360, Government of the United States of America - Division of HIV Prevention, Kenya Medical Research Institute (KEMRI) - Center for Clinical Research, University of the Witwatersrand - MatCH Research Unit (MRU), Columbia University - ICAP, University of the Witwatersrand - MatCH Research Unit (MRU), Kenya Medical Research Institute (KEMRI) - Center for Clinical Research, Aurum Institute, Fred Hutchinson Cancer Research Center and University of Washington - Department of Global Health