1. Department of Global Health, University of Washington, Seattle, Washington;
2. Department of Epidemiology, University of Washington, Seattle, Washington;
3. Centre for Global Health Research, Kenya Medical Research Institute, Nairobi, Kenya;
4. Department of Medicine, University of Washington, Seattle, Washington;
5. Kenya Medical Research Institute/Centers for Disease Control and Prevention, Nairobi, Kenya;
6. Kenya Medical Research Institute/Centers for Disease Control and Prevention, Kisumu, Kenya;
7. Dengue Branch, Division of Vectorborne Diseases, Centers for Disease Control and Prevention, San Juan, Puerto Rico;
8. Division of Global Health Protection, Centers for Disease Control and Prevention, Atlanta, Georgia;
9. School of Public Health, Texas A&M University, College Station, Texas