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The Independent UK
The Independent UK
National
Emily Atkinson

What is XBB Covid? The new Omicron variant that has led to surge in cases

EPA

New Covid strains are sparking fresh health concerns worldwide as new descendants of the highly-transmissible Omicron variant now reportedly account for 40 per cent of cases in the US.

Omicron relatives XBB and XBB.1.5 have seen a surge in cases in countries across the globe.

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