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John_Purdy
New Contributor

how long does Covid-19 remain infectious on various surfaces AND HOW DOES THIS AFFECT THE SO-CALLED "DEEP CLEANING" SO OFTEN DONE

I see in the television news reports that premises or airplanes are deep cleaned.  Sometimes I see video footage of people in head-to foot coverings of PPE spraying roadside gutters and sidewalks.  To do the best job of following good hygiene practices, id like to know the science behind deep cleaning. 

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