A new mutant strain of Covid is being monitored, according to scientists. It comes as the UK Health Security Agency (UKHSA) revealed that a total of 637 cases of the so-called XE variant - a blend of two Omicron strains - have been identified.
First discovered on January 19 this year, scientists are keeping a watchful eye on the mutation to see how it develops, reports Wales Online.
However, the UKHSA say that there is currently insufficient evidence to allow conclusions to be drawn in terms of how the variant it likely to grow and spread.
Scientists have recently been looking at three recombinant variants which have been identified in the UK. A recombinant variant happens when a person becomes infected with two or more strain of Covid at one time.