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Antiviral activities of a single treatment against SARS-CoV-2. Polarized Calu-3 cells were infected with SARS-CoV-2 and treated with the indicated GS-441524 or fluoxetine concentrations for 48 h. Bars represent mean percent inhibition ± SEM of infectious virus production, with mean virus titer produced in control cells (treated with the solvent DMSO) set to 100%; n = 5. Dotted line, 90% reduction in viral titer.
