Health experts have been warned of an extremely transmissible variant of coronavirus which is sweeping across the globe at a "fast pace".
Experts are concerned with some symptoms associated with the strain which could bring back mask-wearing in the UK.
It is believed that the XBB.1.16, also known as Arcturus, has spread into at least 33 countries, with the United States recording between 12 and 14 per cent of their cases in country to the strain - and the numbers are continuing to rise.
