1. Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
2. Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa
3. Department of Pathology, University of Cape Town, Cape Town, South Africa
4. Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
5. Department of Bioengineering, University of Washington, Seattle, Washington, USA
6. National Institute for Communicable Diseases, Sandringham, Johannesburg, South Africa
7. Western Sydney Sexual Health Centre, Parramatta, Australia
8. Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, Australia
9. Sydney Medical School—Westmead, University of Sydney, Sydney, Australia
10. Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
11. South African Medical Research Council, Cape Town, South Africa
12. National Health Laboratory Service, Johannesburg, South Africa
13. Seattle Children's Research Institute, Seattle, Washington, USA
14. Department of Pediatrics, University of Washington, Seattle, Washington, USA
15. Department of Global Health, University of Washington, Seattle, Washington, USA