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[(A and B) geometric mean titers (95% confidence intervals) of antibody responses to LTB IgA in serum (A), IgG in serum (B) on the day before challenge (day 0) and on days 4, 7, 9, 28, and 84 following challenge in the MSD and ND groups. (C) Geometric mean fold increase from day before challenge (95% confidence intervals) of LTB IgA in ALS on days 4, 7, 9, 28, and 84 following challenge. The titers are in log2 scale.].
