1. Feinstein International Center, Friedman School of Nutrition, Tufts University, Boston, Massachusetts, USA
2. United Nations Children’s Fund (UNICEF), New York, New York, USA
3. Supply Division, UNICEF, Copenhagen, Denmark
4. Department of Civil and Environmental Engineering, Lehigh University, Bethlehem, Pennsylvania, USA
5. Department of Community and Population Health, Lehigh University, Bethlehem, Pennsylvania, USA
6. Office of Technical and Program Quality, U.S. Agency for International Development (USAID) Bureau for Humanitarian Assistance, Washington, District of Columbia, USA
7. Retired from Centers for Disease Control and Prevention, Atlanta, Georgia, USA
8. Global WASH Cluster, UNICEF, Geneva, Switzerland