PDGFA and infection: (A) Gene expression of healing markers Pdgfa, Tgfb1, and Egf 4 days post-infection (4 dpi) for uninfected and E. faecalis-infected 6–7 week-old C57BL/6 J mouse skin wounds, normalized to intact skin (n=6 for skin; n=8 for wounds; one-way ANOVA).