The Covid strain, formally known as XFG and nicknamed Stratus, is said to have one unique symptom - and is spreading rapidly in the UK.
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The Stratus strain has become known for its one unique symptom
The Covid strain, formally known as XFG and nicknamed Stratus, is said to have one unique symptom that helps identify which variant..
In just a few weeks the variant has become dominant, thanks to its ability to spread quickly and easily
