As shown in Figure 3(b), at 18 hours after infection, the CD45+ PMNs constituted 61.5%, 49.6%, and 56.4% of the PLCs in the mice infected with 0.8, 1.6, and 2.4 × 108 CFUs of E. coli, respectively, compared with 32.5% in the control mice. Here, PTPRC is linked to infection.