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Validation results of the viability PCR (v-PCR) on cultured virus with (A) high viral load (VL) and (B) low VL. Mixtures containing intact SARS-CoV-2 ranging from 100% to 0% were divided into a PMAxx-treated sample vs a non-PMAxx-treated sample. Delta cycle threshold (ΔCt) values are calculated by subtracting the Ct value of the PMAxx-treated sample from the non-PMAxx-treated sample. Ct values are shown as means; ΔCt values are shown as means ± standard deviations.
