Comparison between In Vitro Antiviral Effect of Mexican Propolis and Three Commercial Flavonoids against Canine Distemper Virus

Figure 1

Antiviral treatment evaluation by the MTT colorimetric assay (AU₅₉₅). Results are expressed as the mean of each group's three determinations (n=48). (a) Propolis, (b) quercetin, (c) pinocembrin, (d) naringenin, and (e) flavonoids mixture. The different times at which the treatments were implemented are compared: (1) cells without treatment and virus infection, (2) cells with treatment without virus infection, (3) cells infected with virus without treatment, (4) cells treated for 2h, then removed, and infected with the virus, (5) cells infected and treated at the same time, and (6) cells infected for 2 h with the virus. It was removed, and the treatment was applied. Differences in the number of asterisks indicate significant differences between treatments (p <0.01).

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