Figure 4From: Protective essential oil attenuates influenza virus infection: An in vitro study in MDCK cells Essential oil dose not block IAV PR8 binding and entry in MDCK cells as confirmed by confocal imaging. Binding and internalization of oil treated (1:4,000 dilution) and untreated PR8 virus to MDCK cells was examined as described in Figure 3. Following infection, NP was stained with the fluorescent dye Alexa Fluor 488. Cell nuclei were stained with DAPI (purple).Back to article page