From 11 January in England, if you get a positive lateral flow test result:
You will no longer need to take a follow-up PCR test. You should still self-isolate immediately.
This is a temporary measure while COVID19 cases remain high. More details: Confirmatory PCR tests to be temporarily suspended for positive lateral flow test results - GOV.UK (www.gov.uk)
There are two million COVID-19 booster jab appointments available over the next week. If you haven’t yet had your COVID-19 booster vaccine, please do come forward and get the best protection from the Omicron variant. Book YOURS today and GetBoostedNow: http://nhs.uk/Covid-Booster