1. West Bengal State AIDS Prevention & Control Society, India
2. Division of Epidemiology, Indian Council of Medical Research(ICMR) – National Institute of Cholera and Enteric Diseases, India.
3. Division of Virology, Indian Council of Medical Research(ICMR) – National Institute of Cholera and Enteric Diseases, India.
4. Division of Bacteriology, Indian Council of Medical Research(ICMR) – National Institute of Cholera and Enteric Diseases, India.