1. Cliff Oduor () is data manager at KEMRI/CDC Research and Public Health Collaboration, Kisumu, Kenya.
2. Kelly T. Alexander () is research assistant at Liverpool School of Tropical Medicine, UK.
3. Kelvin Oruko () is field coordinator at KEMRI/CDC Research and Public Health Collaboration, Kisumu, Kenya.
4. Elizabeth Nyothach () is project manager at KEMRI/CDC Research and Public Health Collaboration, Kisumu, Kenya.
5. Linda Mason () is research associate at Liverpool School of Tropical Medicine, UK.
6. Frank O. Odhiambo () is chief of health and demographic surveillance at KEMRI/CDC Research and Public Health Collaboration, Kisumu, Kenya.
7. John Vulule () is chief research officer at KEMRI/CDC Research and Public Health Collaboration, Kisumu, Kenya.
8. Kayla F. Laserson (), former CDC-Kenya director, Kisumu, is at the Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
9. Penelope A. Phillips-Howard () is senior lecturer at Liverpool School of Tropical Medicine, UK.