❦ ‘COVID patients exhale high numbers of virus during the first eight days after symptoms start, as high as 1,000 copies per minute, reports a new Northwestern Medicine study.

It is the first longitudinal, direct measure of the number of SARS-CoV-2 viral copies exhaled per minute over the course of the infection – from the first sign of symptoms until 20 days after.

On day eight, exhaled levels of virus drop steeply, down to near the limit of detection – an average of two copies exhaled per minute.’

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📖 (8 Sep 2023 ~ Northwestern University) COVID patients breathe large amounts of virus early on ➤

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