90%? Lol wtf are you smoking?
I said up to 90%, which was based on information from 3 states. Is this a denial thing? Are you trolling? I don't get why people pretend that this information doesn't exist. It was reported by the New York Times. I watched a video where an epidemiologist explained that aside from the CT issues, there were also problems with the sheer number of tests performed with a "test everyone, test often" approach. Tests being performed in open air collection sites, over worked nurses conducting tests, new testers being rushed through training to keep up with demand, cross contamination from improperly stored test swabs, etc.
If your population case rate is 1 per 1000, and you have a 1% false positive rate on tests, that means for every 1 real case per thousand, you have 10 false positive tests. That works out to just over 90% of reported cases are false positive. With all of the short comings of excessive testing, the working false positive testing rate can be as high as 10%. The new guidelines should help eliminate those false positives.