aBy χ2 test for comparison among four age groups. bBy χ2 test for comparison between PVRV and PCECV. Seroconversion rate (rabies virus neutralizing antibody (RVNA) titers ≥ 0.5 IU/ml) comparison betwe
Background A bivalent killed whole cell oral cholera vaccine has been found to be safe and efficacious for five years in the cholera endemic setting of Kolkata, India, when given in a two dose schedul