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Nanosilver solution reduced infectious titre of SARS-CoV-2 in a time-dependent manner. 5 × 105 PFU (plaque forming units) of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) strain UF-1 was incubated with the nanosilver solution or controls (media or inactivated nanosilver solution) for times indicated on the figure and enumerated following inactivation. All timepoints were tested in triplicate.
