A new strain of Covid-19 dubbed the 'nightmare' variant has reached 18 known cases in the UK - with scientists and experts urging residents to stay up to date with eligible vaccines.
The warning comes after the cases of the XBB strain were detected across Great Britain, out of a global total of 1,086,639 samples uploaded from Singapore.
It is thought the mutated variant may be a slight factor in the recent spike of Coronavirus cases, as it spreads at a rapid pace and appears to evade vaccine immunity.
