Two new Covid variants are sweeping across the UK with Stratus now the dominant strain - and ITV's Dr Sara has now revealed the two telltale signs to look out for View 3 Images Dr Sara has revealed the key symptoms you should be looking out for (Image: Getty Images/iStockphoto)

Cases of the new Stratus Covid variant and sweeping across the UK, with the strain now thought to make up around 63% of cases nationwide. ITV's Dr Sara Kayat has now explained the two "telltale" symptoms to look out for. ‌

Stratus, encompassing two sub-variants XFG and XFG. 3, is the most prevalent Covid strain across the UK, according to the World Health Organization (WHO), as of late September 2025. It was initially identified in January 2025 and has since spread across various areas of the cou

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