CSF3 and infection: CSF3, which promotes the production, differentiation, and function of granulocytes, was significantly higher in C57BL/6J mice at days 6, 9, and 13 days post-infection (Figure 5), consistent with higher levels of peribronchiolar cuffing and bronchiolar intraepithelial granulocytes in C57BL/6J mice on days 9 and 13 post-infection (Supplementary Table S1).