Moreover, pretreatment with the myosin-9 inhibitor – ML-9 (10 μM) significantly reduced the infection of HPV16 and HSV-2 rather than the influenza A virus in HeLa cells, suggesting that myosin-9 is required for efficient infection of HPV and HSV rather than IAV (Fig. 4, E–J). This evidence concerns the gene MYH9 and infection.