1. Copenhagen Center for Disaster Research, Global Health Section, Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, Building 22, 1014 Copenhagen, Denmark
2. Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
3. Department of Public Health, School of Pharmacy and Public Health, Independent University, Dhaka 1229, Bangladesh
4. icddr,b, Dhaka 1212, Bangladesh
5. Institute of Health Economics, University of Dhaka, Dhaka 1000, Bangladesh