Figure 4.
IgG1 and IgG2a mAbs protect wild-type but not FcRγ−/−/RIIB−/− or FcRγ−/− mice from B. anthracis infection. (A) Kaplan-Meier analysis of survival rate of FcRγ−/−/RIIB−/− or wild-type mice treated with IgG1 and IgG2a mAbs or isotype control antibodies (n = 10). (B) Kaplan-Meier analysis of survival rate of FcRγ−/− or wild-type mice treated with IgG1 and IgG2a mAbs or isotype control antibodies (n = 10). The log-rank test was used to determine significance between wild-type and FcRγ−/−/RIIB−/− and FcRγ−/− mouse groups treated with IgG1 and IgG2a mAbs. Data shown are representative of two independent experiments.