Toll-like receptor 4 was increased 18, 24, and 36 h after CASP (all versus control P = 0.0067, P = 0.0092, P = 0.0001, Figure 3(b)), whereas TLR9 was elevated only 36 h after infection (versus control P = 0.0029, Figure 3(c)). This evidence concerns the gene TLR9 and infection.