1. National Institute for Communicable Diseases of the National Health Laboratory Service (NHLS), Johannesburg, South Africa
2. Department of Virology, University of the Witwatersrand, Johannesburg, South Africa
3. Department of Medicine, Columbia University, New York, New York, USA
4. Department of Medicine, University of Rochester, Rochester, New York, USA
5. Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, USA
6. Aurum Institute, Parktown, South Africa
7. School of Public Health, University of Witwatersrand, Johannesburg, South Africa
8. Fenway Health, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
9. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
10. Institute for Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
11. University of Kwa-Zulu Natal, Durban, South Africa
12. National Health Laboratory Service, Johannesburg, South Africa
13. South African Medical Research Council, Cape Town, South Africa
14. Department of Biostatistics, University of Washington, Seattle, Washington, USA
15. Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa