Chat about Novel Coronavirus - 2019-nCoV - COVID-19

My guess is that the "don't test with lateral flow within 90 days of positive PCR" advice is just a form of chinese whispers.

No idea about the logic or the rule but this was the reason given to the GF by the school (academy) that she did not have to test and the school would not issue LFT tests until the 90days had passed.

But this was the beginning of last year.