1. Rakai Health Sciences Program, Kampala, Uganda
2. Population Studies Group, Faculty of Epidemiology and Public Health, London School of Hygiene and Tropical Medicine, London, UK
3. Malawi Epidemiology and Intervention Research Unit, Karonga, Malawi
4. Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
5. MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
6. Africa Health Research Institute, South Africa
7. University of KwaZulu-Natal, Durban, South Africa
8. National Institute for Medical Research, Mwanza Centre, Mwanza, Tanzania
9. Kenya Medical Research Institute Center for Global Health Research Kisumu, Kenya
10. Department of Public Health, University of Copenhagen, Copenhagen, Denmark
11. Biomedical Research and Training Institute, Harare, Zimbabwe