Levels of the new XFG and XFG.3 variants are "rapidly growing" and now account for 40 per cent of Covid-19 cases in England ...

Data unveiled by the UK Health Security Agency (UKHSA) reveals that Stratus has surged to become the prevailing Covid strain ...

The new Covid variant, officially known as XFG and dubbed Stratus, has become the dominant strain in England within weeks, ...

The Covid strain, formally known as XFG and nicknamed Stratus, is said to have one unique symptom - and is spreading rapidly ...

Last month doctors said a variant called Nimbus was spreading quickly through the country - giving people a very sore throat ...