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Omicron XE is spreading in the UK – a virologist explains what we know about this hybrid variant

As the COVID pandemic has progressed, we’ve repeatedly seen the arrival of new viral variants. Variants of concern, such as delta and omicron, are versions of SARS-CoV-2 (the virus that causes COVID-19) which have acquired mutations. These mutations can provide SARS-CoV-2 with a genetic advantage – so for example, delta is linked to more serious illness than the original Wuhan strain, while omicron is more infectious.

Omicron XE is spreading in the UK – a virologist explains what we know about this hybrid variant
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