1. Division of Allergy and Clinical Immunology, Department of Medicine, University of Cape Town
2. Allergy and Immunology Unit, University of Cape Town
3. Fred Hutchinson Cancer Research Center, Seattle, USA
4. Department of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
5. South African Vaccination and Immunisation Centre, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
6. South African Health Products Regulatory Authority, Pretoria, South Africa
7. Discovery, Health Intelligence, Johannesburg
8. Biostatistics Research Unit, South African Medical Research Council, Durban, South Africa
9. HIV and Infectious Disease Research Unit, South African Medical Research Council
10. Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
11. Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
12. The Desmond Tutu HIV Centre, Cape Town, South Africa
13. Department of Medicine, University of Cape Town, South Africa
14. South African Medical Research Council, Cape Town, South Africa