- 80% of COVID-19 spreads from people who don't know they are sick — An analysis published Monday in the journal Science suggests so-called "undocumented" cases, or those who experienced mild, limited or no symptoms and went undiagnosed as a result, may be unintentionally driving the spread of it. https://www.upi.com/health_news/2020/03/16/80-of-covid-19-spreads-from-people-who-dont-know-they-are-sick/7771584372104/?ds=5 1345 comments worldnews
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