Fig. 1.

The effects of Q7R on the infectivity of PEDV particles. PEDV particles were incubated with Q7R of 10 μg/mL for 1 h at 4 °C. Afterwards, Vero cells were incubated with Q7R-treated or untreated virus for 1 h at 37 °C. Unbound virus was removed by extensive washing and infection was continued by cultivating cells in infection medium with or without Q7R of 10 μg/mL at 37 °C. Antiviral activity was determined by titration using SRB assays 2 days post-infection. Preinc, pre-incubation was expressed incubation without Q7R of 10 μg/mL after washing; Inc., incubation was expressed incubation with Q7R of 10 μg/mL after washing.