University of North Carolina (UNC) at Chapel Hill, University of North Carolina (UNC) at Chapel Hill, University of North Carolina (UNC) at Chapel Hill, University of North Carolina (UNC) at Chapel Hill, Parirenyatwa Group of Hospitals, Ohio State University (OSU) - Division of Epidemiology, University of Minnesota - Minneapolis, Partners in Hope, University of Zambia (UNZA) - Department of Health Policy and Systems, University of Cape Town (UCT) - Desmond Tutu HIV Centre, - Institute of Human Virology, Human Sciences Research Council (HSRC), Human Sciences Research Council (HSRC), Columbia University - ICAP, University of North Carolina (UNC) at Chapel Hill and Costa del Sol Hospital - Obstetrics and Gynecology