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SARS-CoV-2 (1x10^5 TCID50, WA1/2020 isolate) was incubated with 6% acetic acid (or distilled water negative control) for 15min at a 1:10 ratio. The sample was then diluted 1:100 using water and tested for live virus by TCID50. TCID50 was read 10 days after experimental set up but left in culture for an additional week to ensure that no additional viral outgrowth occurred. Data represent mean ±SD, n = 2 *p < 0.05.
