1. School of Public Health, University of California, Berkeley
2. University of California, San Francisco3Harvard T. H. Chan School of Public Health, Boston, Massachusetts
3. Infectious Diseases Research Collaboration, Kampala, Uganda
4. Kenya Medical Research Institute, Nairobi, Kenya
5. University of California, San Francisco
6. Infectious Diseases Research Collaboration, Kampala, Uganda6Makerere University, Kampala, Uganda