PAX7 and infection: Nevertheless, the cardiotoxin‐injected muscles of KO mice showed an evident increase in the number of Pax7‐expressing SCs and the expression level of Pax7 until 28 days post‐infection compared to control muscle of KO mice, while the cardiotoxin‐injected muscles of WT mice exhibited a comparable level both at 28 days post‐injection, compared to control muscles of WT mice (Figure 7d,f).