A Covid strain dubbed the "nightmare" variant" has reached 18 cases in the UK, with scientists urging the public to remain up-to-date with vaccinations.
It's after 18 samples of the mutant XBB strain were detected in the UK out of a global total of 1,086,639 samples, which were uploaded from Singapore.
It is thought that the variant may be a factor in the recent spike in cases because it spreads quickly and appeared to evade people's vaccine protection.
