Fig. 3

Antibody responses in in the sera of both immunized and non-immunized. (A) Total IgG levels were measured against Omp22, FliC-Omp22, FliC, and the whole cell of A. baumannii. (B) IgG1 and IgG2a subclass titers were assessed. The data are represented as the mean ± SD. Datasets marked with distinct superscript letters exhibit statistical differences from each other.