1. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
2. Department of Epidemiology, and Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA; Departments of Environmental Health Sciences and Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan,
USA
3. Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
4. Division of Infectious Diseases & Tropical Medicine, Medical Center of the University of Munich, Munich, Germany
5. Department of Microbiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
6. Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts, USA
7. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusett, USA; Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts, USA