Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Emory University - School of Medicine, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, National Institutes of Health - Vaccine Research Center, Botswana Harvard AIDS Institute Partnership (BHP), University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, South African Medical Research Council, Asociacion Civil Impacta Salud y Educacion, - Instituto Nacional de Infectologia Evandro Chagas (INIEC), Harvard University - Brigham and Women’s Hospital, FHI 360 (Family Health International), Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Government of the United States of America - National Institutes of Health (NIH), Government of the United States of America - National Institutes of Health (NIH), Government of the United States of America - National Institutes of Health (NIH), Government of the United States of America - National Institutes of Health (NIH), University of North Carolina (UNC) at Chapel Hill - Department of Medicine, Fred Hutchinson Cancer Research Center, Aurum Institute and University of Zimbabwe - Clinical Trials Research Centre