If you're feeling a bit off, an unexpected symptom could indicate that you've contracted one of the new Covid strains currently circulating. One of the most prevalent variants in the UK at present is XFG, also known as Stratus.

Experts have reassured that these do not appear to pose any greater risk than previous forms of Covid or cause more severe illness. However, recent genetic alterations in the virus may increase the chances of infection and present slightly different symptoms, such as a scratchy throat.

Dr Kaywaan Khan, a Harley Street GP and founder of Hannah London Clinic, told the Mirror: "You can still get some of the same features as with the common cold, like a cough or runny nose, but we are seeing a lot more hoarseness of voice."

Dr Khan continued: "It's not a definin

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