After the infection, the percentage of splenic ProE or splenic EryA in wild-type mice was higher than in TLR7-/- mice (Figures 2I, J), however, the percentage of splenic EryB in wild-type mice and TLR7-/- mice were similar (Figure 2K), resulting in a lower percentage of splenic EryC in wild-type mice than in TLR7-/- mice (Figure 2L). Here, TLR7 is linked to infection.