1. Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
2. Institute of Public Health, Kilimanjaro Christian Medical University College, Moshi, Tanzania
3. Duke Global Health Institute, Durham, NC, USA
4. Moshi Municipal Council, Moshi, Tanzania
5. Kilimanjaro Christian Medical Centre, Moshi, Tanzania
6. Institute of Human Virology, University of Maryland, Baltimore, MD, USA