Figure 6. Mice deficient of B cells (JHT−/−) immunized with PS4-BMDC are susceptible to Pn4 challenge.

WT, B-cell deficient (JHT−/−), αβT cell deficient (TCRβ−/−) or γδT cell deficient (TCRδ−/−) mice were immunized IFP with PS4-BMDC. Three weeks later, the mice were challenged with Pn4 bacteria (100,000×LD₅₀) IP (n = 10).