To convert human ESCs into SkM cells, we added SeV‐Myod1 to human ESCs once on day 0 or twice on days 0 and 2 (Figure 1A), and we compared the positivity of myosin heavy chain (MHC), one of the SkM markers, among different conditions of SeV‐Myod1 infection (Figure 1C). This evidence concerns the gene MYOD1 and infection.