1. Centre for HIV & STIs National Institute for Communicable Diseases National Health Laboratory Service Johannesburg South Africa
2. Department of Medical Virology Faculty of Health Sciences University of Pretoria Pretoria South Africa
3. Paediatric HIV Diagnostics Wits Health Consortium Johannesburg South Africa
4. Department of Paediatrics & Child Health Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
5. Department of Chemical Pathology National Health Laboratory Service and University of Witwatersrand Johannesburg South Africa
6. Paediatric Infectious Diseases Division Department of Paediatrics Kalafong Provincial Tertiary Hospital Pretoria South Africa
7. Department of Paediatrics and Child Health Faculty of Health Sciences University of Pretoria Pretoria South Africa
8. Health Systems Research Unit South African Medical Research Council Cape Town South Africa
9. Institute for Cellular and Molecular Medicine Department of Immunology SAMRC Extramural Unit for Stem Cell Research and Therapy Faculty of Health Sciences University of Pretoria Pretoria South Africa