[1] Christian Med Coll & Hosp, Dept Clin Microbiol, Vellore 632004, Tamil Nadu, India
[2] Manipal Hosp, Lab Med, Bangalore, Karnataka, India
[3] Fortis Hosp, Dept Microbiol, Kolkata, India
[4] Choithram Hosp, Dept Pathol, Indore, India
[5] Calcutta Med Res Inst, Dept Pathol, Kolkata, India
[6] Sanjay Gandhi Post Grad Inst Med Sci, Dept Microbiol, Lucknow, Uttar Pradesh, India