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(A) Antiviral effect (expressed as % of inhibition) of baicalin and delphinidin-3-glucoside (μM) against SARS-CoV-2 measured by qRT-PCR assay. The inhibition of viral replication in Vero E6 cells by baicalin and delphinidin was expressed as the reduction of the viral load in the culture media. (B) Virucidal activity was confirmed by plaque reduction assays expressed as PFU/mL. Data were obtained from three independent experiments, and are expressed as mean ± SD.
