The deadly 'Kraken' coronavirus variant, as well as the CH.1.1 variant, are expected to take over and become the dominant strains in the UK, experts have warned.
The XBB.1.5 variant has been increasing in the USA in recent months, the UK Health Security Agency (UKHSA) said.
Currently, Covid cases in the UK are mainly made up of BQ.1 and its sublineages, the UKHSA added.