At day 14 post infection, only TNFα (Figure 5D LdWT, p = 0.0002; LdCen−/−, p = 0.0026) and IL-2 (Figure 5F, LdWT, p = 0.0107; LdCen−/−, p = 0.0021) producing CD200R− T cells were significantly higher than CD200R+ T cells. This evidence concerns the gene CD200R1 and infection.