Figure 6
Passive immunization used MntC-specific CD4+ T cells (and sera). One day before infection, 300 µL MntC-specific sera or (and) 1 × 106 CD4+ T cells per mouse were passively immunized via the intraperitoneal route, with isometric PBS as negative control. (A) Quantitative bacteriology was performed in organs. (B) Survival was monitored for 14 days. Significant differences were indicated by (*P < 0.05), (**P < 0.01) and (***P < 0.001).
