1. Vector Borne Disease Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India;
2. Department of Microbiology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India;
3. Department of Microbiology and Immunology, Institute for Human Infections and Immunity, Centre for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas;
4. Department of Medicine, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India