1. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
2. Projahnmo Research Foundation, Dhaka, Bangladesh
3. Department for Maternal, Child, Adolescents and Ageing Health, World Health Organization, Geneva, Switzerland
4. Department of Epidemiology and Disease Control, University of Ghana School of Public Health, Legon, Accra, Ghana
5. International Center for Diarrheal Disease Research, Bangladesh, Mohakhali, Dhaka, Bangladesh
6. Global Program for Pediatric Respiratory Sciences, Eudowood Division of Paediatric Respiratory Sciences, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
7. Bangabandhu Shaikh Mujib Medical University, Dhaka, Bangladesh
8. Public Health Laboratory-IDC, Chake Chake, Pemba, Tanzania.