1. Kisumu County Department of Health, Kisumu, Kenya
2. Institute of Tropical Medicine, Antwerp, Belgium
3. Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Netherlands
4. Kenya Medical Research Institute, Kisumu, Kenya
5. United States Centers for Disease Control and Prevention, Atlanta, GA, USA
6. United States Centers for Disease Control and Prevention, Dar es Salaam, Tanzania
7. Harvard Medical School, Boston, MA, USA