[1] ICMR Natl Inst Cholera & Enter Dis, Kolkata, India
[2] Sch Trop Med, Dept Microbiol, Kolkata, India
[3] ICMR, ECD Div, New Delhi, India
[4] Bankura Sammilani Med Coll & Hosp, Dept Microbiol, Bankura 722102, W Bengal, India
[5] Malda Med Coll & Hosp, Dept Microbiol, Malda, West Bengal, India
[6] Baruipur Coll, South 24 Parganas, Baruipur 743610, West Bengal, India
[7] Govt West Bengal, Dept Hlth & Family Welf, Kolkata, India
[8] Calcutta Med Coll & Hosp, Dept Paediat, Kolkata, W Bengal, India
[9] IPGMER & SSKM Hosp, Dept Med, Kolkata, West Bengal, India
[10] Coll Med & Sagar Dutta Hosp, Dept Pharmacol, Kolkata, W Bengal, India
[11] Govt West Bengal, Integrated Dis Surveillance Program, Kolkata, India
[12] ICMR Natl Inst Cholera & Enter Dis, Div Epidemiol, P-33 CIT Rd,Scheme XM, Kolkata 700010, India