PTPRC and infection: Flow cytometry analysis of lung infiltrates on day 1 post-infection showed that there were of the order of 1-log fold more neutrophils (CD45+, CD11b+, Ly6G+) in the lungs of rWSN-GH-NS1-wt infected mice compared with the lungs from mice infected with rWSN-GH-NS1-Y84F (Figure 10B).