https://www.bloomberg.com/news/articles/2020-04-27/coronavirus-lingers-in-air-of-crowded-spaces-new-study-finds?utm_source=twitter&utm_medium=cpc&utm_campaign=content&utm_content=tofu
This entry was posted on May 1, 2020 at 6:53 pm and is filed under -. Tags: covid19
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