1. Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, United States
2. Bill and Melinda Gates Foundation, Seattle, Washington 98109, United States
3. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
4. Centers for Disease Control and Prevention Foundation, Atlanta, Georgia 30308, United States
5. Division of Epidemiology and Biostatistics, School of Public Health, University of California−Berkeley, Berkeley, California 94720, United States
6. Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan 48109, United States
7. Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina 27695, United States
8. U.S. Agency for International Development, Washington, DC 20004, United States
9. Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, United States
10. Division of Infectious Diseases and Geographic Medicine, Stanford University, California 94305, United States
11. Center for Global Safe Water, Sanitation and Hygiene, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, United States
12. Department of Civil and Environmental Engineering, School of Engineering, Tufts University, Medford, Massachusetts 02155, United States
13. Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina 27599, United States
14. Mortenson Center in Global Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
15. Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, Virginia 22903, United States