Do we need to pcr?

[Bitesize123]

Both DCs had covid over Christmas then DH had it in January. DCs were out of isolation on 1st and 5th January. They've both started with really similar symptoms - headache, sore throat, nausea, feeling dizzy and a bit snotty. They've both got cases in their class at school. Could they have caught it again? Is that possible so quickly? I was going to book them in for pcrs but can they do this within 90 days?

Have you done LFT tests on them, these are likely to pick up new infection. PCR tests may pick up old infection, but we are told if you get new symptoms then to book PCR test, so yes I would book them in.