Eric Topol on Nostr: If you use culture positive SARS-CoV-2, the best metric for potential infectiousness, ...

If you use culture positive SARS-CoV-2, the best metric for potential infectiousness, 1 in 3 people can transmit Covid 5 days after symptoms onset. Rapid antigen tests track well with that metric. They should be used, despite lack of support in the new CDC policy. https://cdc.gov/respiratory-viruses/background/index.html