Officials in the UK are keeping a close watch on a new strain of the Delta variant of COVID-19 that is causing a growing number of infections.
Delta is the UK's dominant variant, but latest official data suggests six per cent of COVID cases that have been genetically sequenced are of a new type.
The new variant which is being dubbed the "Delta Plus", contains mutations that might give the virus survival advantages.
Tests are under way to understand how much of a threat it may pose.
Experts say it is unlikely to take off in a big way or escape current vaccines.
All feeds
