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The Independent UK
The Independent UK
National
Joe Sommerlad

What is Stealth Omicron? Symptoms of the Covid variant responsible for 57% of cases in England

Victoria Jones/PA

Concerns have been raised about a more infectious sub-strain of the Omicron Covid variant, as cases across the UK rise again.

The UK was hit by a wave of infections caused by Omicron (also known as BA.1) in December and over the New Year after it spread from southern Africa.

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