1. Center for Behavioral and Preventive Medicine, The Miriam Hospital, Providence, RI, USA
2. Department of Emergency Medicine, Rhode Island Hospital, Providence, RI, USA
3. Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
4. Department of Emergency Medicine, Warren Alpert Medical School, Brown University, Providence, RI, USA
5. School of Public Health, Brown University, Providence, RI, USA
6. Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA