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Virucidal activity of EAE, TFE, and amentoflavone after the CVB3 infection. The average viral inhibition rate of samples (%) was detected by MTT assay. The HEp-2 cells were infected with viruses for 1 h at 37°C in a 5% CO2 atmosphere. Then cells were washed with PBS and added with different doses of the samples (50–6.25 μg/mL).
