1. Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland;
2. Department of Global Health, University of Washington, Seattle, Washington;
3. United Nations Children’s Fund (UNICEF), New York, New York;
4. Child Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya;
5. Department of Epidemiology, University of Washington, Seattle, Washington;
6. Department of Pediatrics, University of Washington, Seattle, Washington;
7. Department of Medicine, University of Washington, Seattle, Washington;
8. Department of Pediatrics and Child Health, University of Nairobi, Nairobi, Kenya;
9. Center for Public Health Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya