Fig. 5From: Characterization and mechanisms of anti-influenza virus metabolites isolated from the Vietnamese medicinal plant Polygonum chinense Confocal microscopy. MDCK cells were infected with PR8 virus at an MOI of 1 in the presence either of 1 mM PC5, PC7 or PC8 or of 10 μM EGCG (an entry blocker) at 37 °C for 4 h. The viral NP was labeled with mouse anti-NP antibody and Alexa Fluor 488-conjugated goat anti-mouse antibody (green). Cellular nuclei were counterstained with DAPI (blue). Original magnification, 400 ×Back to article page