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No.5, No.7, and No.18 carbazole derivatives were confirmed to anti-PEDV replication. (a–c) The vero-81 cells were incubated with No.5 (a), No.7 (b), or No.18 (c) carbazole derivatives at a concentration of 10 µM/mL for 1 h, and then infected EGFP-PEDV for 24 h. The fluorescence was analyzed by flow cytometry. *** p < 0.001.
