1. Khayelitsha Project, Médecins Sans Frontières (MSF), Cape Town, South Africa, Southern Africa Medical Unit, MSF, Cape Town, South Africa
2. Khayelitsha Project, Médecins Sans Frontières (MSF), Cape Town, South Africa
3. Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
4. National Department of Health, Pretoria, South Africa
5. Center for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
6. Division of Medical Microbiology, Department of Pathology, University of Cape Town, Cape Town, South Africa, Institute for Infectious Disease and Molecular Medicine and Wellcome Centre for Infectious Disease Research in Africa, University of Cape Town,
Cape Town, South Africa