1. Department of Molecular Medicine and Haematology National Health Laboratory Services Johannesburg South Africa
2. Department of Molecular Medicine and Haematology University of the Witwatersrand Johannesburg South Africa
3. Ezintsha, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
4. Global Medical Affairs ViiV HealthCare Johannesburg South Africa
5. Translational Virology Department of Medical Microbiology University Medical Center Utrecht Utrecht The Netherlands