CPZ and infection: Furthermore, when the cells were preincubated with CPZ and then incubated with MβCD after viral entry, 2.37%, 0.28%, and 0.18% of Sf21 cells were infected in the 0, 25, and 50 μg/mL CPZ-treatment conditions, respectively (Figure 5B post-MβCD), the infection rate was significantly decreased to ~11.8% and 7.6%, and significant differences were detected between the CPZ treatments in the three groups.