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Serum anti-TcdA IgG (a) and anti-TcdB IgG (b) responses in mice immunized on weeks 0 and 1. Cohorts of mice received TcdARBDNC and TcdBRBDNC adjuvanted with LT(r192g) or alum or both. Results were determined by kinetic ELISA; the geometric mean plus standard error of the mean for each cohort are shown.
