1. Centre for the AIDS Programme of Research in South Africa (CAPRISA) University of KwaZulu‐Natal Durban South Africa
2. Department of Epidemiology Columbia University New York NY USA
3. National Health Laboratory Service Cape Town South Africa
4. Institute of Infectious Diseases and Molecular Medicine (IDM) University of Cape Town Cape Town South Africa
5. Department of Medical Microbiology and Infectious Diseases University of Manitoba Winnipeg Manitoba Canada
6. Department of Medical Microbiology University of Nairobi Nairobi Kenya
7. Department of Pathology and Cell Biology Columbia University New York NY USA