MSNBC All In With Chris Hayes December 29, 2021 08:34:00
Predictive capability of a test to say whether or not you are infective is much, much more weighted towards the earlier first five days. once you get into the latter part of that, the predictive value of that in telling you whether or not you're infective or not, there's no real data to say that. there's very little known about that, and that was the basis of the cdc decision. >> so, wait, let me just follow up a little bit because i follow this relatively closely as just a journalist and not a public health expert. what you're saying is the predictive value of an antigen test, a rapid test, l...