1. Field Epidemiology Training Program Bangladesh, Institute of Epidemiology, Disease Control and Research, Dhaka, Bangladesh,
2. icddr,b (formerly International Centre for Diarrhoeal Diseases Research, Bangladesh), Dhaka, Bangladesh;
3. Global Immunization Division and
4. Expanded Program for Immunization, Ministry of Health and Family Welfare, Dhaka, Bangladesh, and
5. Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia