Originally Posted by skywatch

Are you (they) basing that off of a positive PCR test? According to CDC, you can test positive on a PCR test for up to three months after you have had Covid - although you don't really have it anymore. That is why they don't recommend a test to "clear" you, rather a symptom based evaluation to end isolation/quarantine.

https://www.cdc.gov/coronavirus/2019...isolation.html

4. Recovered patients can continue to have SARS-CoV-2 RNA detected in their upper respiratory specimens for up to 12 weeks after symptom onset. (31,33,34)