>everyone in the London Borough I live in has been told to get tested for cvoid because of the south african variant
>booked my test for next week
>I already tested positive for covid in december and did the self isolation over Christmas, never got symptoms other than losing my sense of smell

What's the actual likelihood of me getting covid twice? I'm not too worried since only 10 people actually tested positive yesterday in a borough of over 300k people but it would be super annoying to have to do the 10 day self isolation again.