DS (& our whole family) have had Covid. He is due to return to school on Monday & will have to undertake a LFD. My understanding is that we could all possibly test positive for up to 90 days following our original infection. If his LFD is positive (likely) then we will need a PCR which I'm assuming will also be likely to remain positive. None of us have been anywhere or seen anyone since coming out of isolation so it incredibly unlikely that have caught the virus again. How do we break the cycle of self isolation in this situation?