Four in 10 Infected People May Unknowingly Spread Virus

Infected people who show no symptoms might be contributing significantly to transmission of SARS-CoV-2, the virus that causes COVID-19, given that they account for 40.5% of confirmed infections worldwide, according to a study published in JAMA Network Open.
Reuters Health Information

source https://www.medscape.com/viewarticle/964915?src=rss

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