1. Department of Epidemiology and Biostatistics, School of Public Health Makerere University College of Health Sciences Kampala Uganda
2. Ministry of Health Central Public Health Laboratories Kampala Uganda
3. Department of Medicine School of Medicine, Makerere University College of Health Sciences Kampala Uganda
4. Rakai Health Sciences Project Rakai Uganda
5. Infectious Diseases Institute, Makerere University College of Health Sciences Kampala Uganda
6. Department of Community Health and Behavioral Sciences School of Public Health, Makerere University College of Health Sciences Kampala Uganda