PAX7 and infection: Again, there were fewer eGFP+ve cells incorporating EdU after infection with S1PR3 RV than control RV, but there was no change in the proportion of eGFP+ve cells expressing Pax7 (70.5±2.1 for S1PR3 RV compared to 72.9±1.2 for control RV) or myogenin (23.3±1.2 for S1PR3 RV compared to 21.3±2.1 for control RV).