At day 7 postinfection (p.i.), flow cytometry analysis showed a significantly reduced percentage of infected NPCs ( P < 0.05) in cultures exposed to the combination 5BVdU–IFN-α compared to untreated cells infected for 48 h, but the reduction of infected cells in ACV-treated cultures did not reach statistical significance at MOIs of 0.1 and 0.01 ( Fig. 2a ).
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