https://profootballtalk.nbcsports.com/2020/07/28/josiah-scott-says-hes-had-multiple-negative-tests-after-false-positive/

Jacksonville Jaguars cornerback Josiah Scott was one of four players placed on the COVID-19/reserve list by the team on Monday.

Scott, via his Twitter account, said that his first test was a false positive and that he has since had multiple negative follow-up tests.

As Peter King detailed, a player such a Scott that has tested positive can return under two conditions:

If he has symptoms of COVID-19, at least 10 days must pass since the first symptoms occurred and at least 72 hours have passed since symptoms last occurred. He must test negative and have his return approved by a team doctor in consultation with league medical officials.

If he is asymptomatic, 10 days must have passed since his positive test—or five days have passed since the positive test, plus two tests that show negative results, for him to resume playing.

Unreliable information can be an issue.

At my last board meeting the county health department administrator said that 5% of the tests show a false positive. He then said about 5% of the tests show a false negative. He then named a major Pharma company and said their test kits have a higher degree of false tests than other companies test kits. He didn't say why.

I have no idea which test kits the NFL uses.

Originally Posted by: wpr 

Wow. So we are supposed to trust these tests as accurate.
So much for trusting the people that we think know about this disease.

Originally Posted by: Cheesey 

We should all behave as if we have it. Be prudent, do the right things.

Originally Posted by: KRK