1. Division of Biochemistry ICMR‐National Institute of Cholera and Enteric Diseases Kolkata India
2. Division of Bacteriology ICMR‐National Institute of Cholera and Enteric Diseases Kolkata India
3. Division of Electron Microscopy ICMR‐National Institute of Cholera and Enteric Diseases Kolkata India
4. Collaborative Research Center of Okayama University for Infectious Diseases at NICED Kolkata India