Meanwhile PD-1 blockade significantly increased the lymphocyte number in BVDV-infected mice at day 7 (CP BVDV, p < 0.01, Figure 7B; NCP BVDV, p < 0.05, Figure 7B) and 10 (CP BVDV, p < 0.05, Figure 7B; NCP BVDV, p < 0.05, Figure 7B) of post-infection. The gene discussed is RPL17; the disease is infection.