1. Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal;
2. BP Koirala Institute of Health Sciences, Dharan, Nepal;
3. Public Health and Infectious Disease Research Center, Kathmandu, Nepal;
4. Department of Microbiology and Immunology, McGill University, Montreal, Canada;
5. Centre for Medicine and Society/Anthropology, Freiburg University, Freiburg, Germany
6. Special Programme for Research and Training in Tropical Diseases (TDR), World Health Organization (WHO), Geneva, Switzerland;