1. Centre for HIV and STIs National Institute for Communicable Diseases Johannesburg South Africa
2. Faculty of Health Sciences School of Public Health University of the Witwatersrand Johannesburg South Africa
3. Department of Medical Virology Faculty of Health Sciences University of Pretoria Pretoria South Africa
4. Paediatric HIV Diagnostics Wits Health Consortium Pty Ltd Johannesburg South Africa
5. Department of Paediatrics and Child Health Faculty of Health Sciences University of the Witwatersrand Johannesburg Johannesburg South Africa
6. Department of Paediatrics Faculty of Health Sciences Empilweni Services and Research Unit Rahima Moosa Mother and Child Hospital University of the Witwatersrand Johannesburg South Africa
7. National Priority Programmes National Health Laboratory Service Johannesburg South Africa
8. Department of Molecular Medicine and Haematology Faculty of Health Sciences School of Pathology University of the Witwatersrand Johannesburg South Africa