Preincubation of Vero E6 cells with these inhibitors followed by infection with VSV-EBOV universally resulted in efficient and dose-dependent inhibition of infection, with IC50 values of 1.3 μM (CatL inhibitor III), 2.2 μM (MDL28170), 16.1 μM (CA-074) (Figure 1B). This evidence concerns the gene CTSL and infection.