The Omicron variant could still pose a threat to people who caught the virus at Christmas as immunity fades, GPs and experts are warning.
Despite catching Omicron in December, immunity against Covid for those who caught the mutant form of the virus over the festive period, either from a booster vaccine or immunity after an infection, could have wained.
And now there's a new dominant variant, BA.2 - a sister of the strain that was widespread at Christmas, Omicron BA.1 - Brits are being warned they could get sick with the virus again.
