Institution: | (1) Division of Electron Microscopy, National Institute of Cholera and Enteric Diseases, P-33, CIT Road, Scheme XM, Beleghata, 700 010 Kolkata, India;(2) Division of Microbiology, National Institute of Cholera and Enteric Diseases, P-33, CIT Road, Scheme XM, Beleghata, 700 010 Kolkata, India |