1. Médecins Sans Frontières Cape Town South Africa
2. Division of Public Health Medicine School of Public Health and Family Medicine University of Cape Town Cape Town South Africa
3. Department of Epidemiology Boston University School of Public Health Boston Massachusetts USA
4. Centre for Infectious Disease Epidemiology & Research School of Public Health and Family Medicine University of Cape Town Cape Town South Africa
5. City Health Department Cape Town South Africa
6. Western Cape Provincial Department of Health Western Cape South Africa
7. Section of Infectious Diseases Department of Medicine Boston University School of Medicine Boston Massachusetts USA
8. Department of Global Health Boston University School of Public Health Boston Massachusetts USA
9. Health Economics and Epidemiology Research Office Faculty of Health Sciences Department of Internal Medicine School of Clinical Medicine University of the Witwatersrand Johannesburg South Africa