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

aGeometric mean reciprocal titer for the cited bleed bGeometric mean-fold rise between first and second bleed. cNumber of subjects with ≥4 fold rise in titers between first and second bleed dLower 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).