1. Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia;
2. School of Public Health, Georgia State University, Atlanta, Georgia;
3. Center for Vaccine Development, School of Medicine, University of Maryland, Baltimore, Maryland;
4. Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, Virginia;
5. Emory Global Health Institute, Emory University, Atlanta, Georgia
6. Centers for Disease Control and Prevention, Nairobi, Kenya;
7. Centers for Disease Control and Prevention, Delhi, India;
8. Kenya Medical Research Institute/Centers for Disease Control and Prevention, Kisumu, Kenya;
9. Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya;