1. Centre for the AIDS Programme of Research in South Africa, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
2. Epicentre AIDs Risk Management, Cape Town, South Africa
3. Centre for HIV and STIs, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
4. Global Clinical and Virology Laboratory, Amanzimtoti, South Africa
5. Health Economics and HIV/AIDS Research Division, University of KwaZulu-Natal, Durban, South Africa
6. Centers for Disease Control and Prevention, Atlanta, Georgia
7. KwaZulu-Natal Research Innovation and Sequencing Platform, University of KwaZulu-Natal, Durban, South Africa
8. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York