CD4 and infection: While we observed a significant reduction in total CD4+ (Figure 4I) and γδT cell (Supplemental Figure 5B) numbers at days 3 and 5 after infection in the dLNs of CD1d-KO mice, there were no differences in the numbers of activated CD4+ and γδT cells between WT and CD1d-KO mice (Figure 4I and Supplemental Figure 5B).