[1] DHGMCH, Microbiol, Diamond Harbour, W Bengal, India
[2] DHGMCH, Paediat Med, Diamond Harbour, W Bengal, India
[3] DHGMCH, Thalassemia Unit, Diamond Harbour, W Bengal, India
[4] All India Inst Med Sci, Microbiol, Kalyani, W Bengal, India
[5] IPGMER, Dept Microbiol, Kolkata, W Bengal, India
[6] DHGMCH, Dept Gen Med, Diamond Harbour, W Bengal, India
[7] All India Inst Med Sci, Dept Microbiol, Kalyani, W Bengal, India