Q4. The SARS-CoV-2 virus responsible for the global COVID-19 outbreak is known to persist on many...
Q4. The SARS-CoV-2 virus responsible for the global COVID-19 outbreak is known to persist on many surfaces. On a stainless steel surface, it has been shown to have an active half of around 5.6 hours, presumably having a first order type of degradation. (a). How long would a contaminated stainless steel surface take to fall below a level of 1% of the initial contamination? (b). Precisely what is a safe level of exposure to SARS-CoV-2 remains unknown and may be highly variable. If a safe level was determined to be 1 part per million relative to an initial contamination of someone sneezing directly onto a stainless steel hand rail - what would be the minimum time required for the untreated surface to be considered safe?