
Covid cases rising with new variants ‘Nimbus’ and ‘Stratus’
Michelle RobertsDigital health editor Getty Images If you feel unwell with a bad throat and a temperature you may well have caught one of the new strains of Covid circulating this autumn. XFG, called Stratus by some, and NB.1.8.1, known as Nimbus, are now the most common variants being passed around in the UK, according…