Figure 1. Absence of TLR2 increases survival following infection with S. suis highly virulent strain ST1 but not with the epidemic strain ST7.

Survival of 7-week-old C57BL/6 mice (n = 13 mice per infection group) or TLR2^−/− mice (n = 14 mice per infection group) inoculated by intraperitoneal injection with 1×10⁷ CFU of either P1/7 strain (ST1; panel A) or SC84 strain (ST7; panel B) was monitored for 72 h. * P<0.01, indicates statistically significant differences between infected WT and TLR2^−/− mouse groups, as determined by Log-rank (Mantel-Cox) test.