1. Faculty of Health Sciences, University of the Witwatersrand , Johannesburg, South Africa
2. Makerere University Iganga/Mayuge Health and Demographic Surveillance System , Iganga, Uganda
3. Ifakara Health and Demographic Surveillance System , Dar es Salaam, Tanzania
4. Makerere University School of Public Health , Kampala, Uganda
5. Division of Global Health, IHCAR, Karolinska Institutet , StockholmHagalund, Sweden