How long is COVID infectious? What scientists know so far - Nature.com

Those with SARS-CoV-2 are often advised to isolate for only a few days. But evidence is mounting that some people can continue to pass on the virus for much longer.

It is difficult to measure how long a person with COVID-19 will remain infectious.Credit: Agustin Marcarian/Reuters/Alamy When the US Centers for Disease Control and Prevention (CDC) halved its reco… [+6858 chars]

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