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(A–D) Therapeutic protocol. (E–H) Preventative protocol. (A) and (E) Serum IgG1. (B) and (F) Serum IgG2a. (C) and (G) Serum IgA. (D) and (H) Bronchoalveolar lavage fluid (BALF) IgA. Results represent the mean ± standard error of the mean for n = 6–12 mice per group. *p<0.05, **p<0.01. NS, not significant.
