LFT testing after a positive result of COVID
07 Dec 2021
The 90-day window after a positive test
If someone has tested positive with a PCR test, they should not be tested using either PCR or rapid lateral flow tests for 90 days, unless they develop new symptoms during this time – in which case they should be retested immediately using PCR.
This 90-day period is from the initial onset of symptoms or, if asymptomatic when tested, their positive test result.