[dhc02]

Yep. In fact, false negatives of current test are a function of time since the onset of symptoms:

Day 1? ~7% false negative Day 10? 40% false negative Day 20? 90% false negative

That's really high, and it seems anecdotally likely that a majority of tests have been administered to people who are 7-10 days or more post-symptom-onset.

Here's the tweet discussing this: https://twitter.com/c0nc0rdance/status/1248094573928251398/

And here's the paper: https://t.co/aSdFeLzopH?amp=1