Serum vibriocidal antibody titers to V. cholerae O1 Inaba and V. cholerae O139 at baseline and 14 days after the second dose among subjects with paired blood specimens

aGeometric mean reciprocal titer for the cited bleedbGeometric mean-fold rise between first and second bleed.cNumber of subjects with ��4 fold rise in titers between first and second bleeddLower boundary of the one-tailed, 95% confidence intervals for the percentage of vaccinees that seroconverted compared to the placebo recipients (shown because the primary hypotheses for the trial included this lower boundary, see text).