Variants of Concern

A Moderna Spikevax COVID-19 vaccine is seen at a drugstore in Cypress, Texas

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New COVID shots are 54% effective in preventing symptoms

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The Omicron variant remains the dominant coronavirus variant circulating globally, but a string of Omicron subvariants has emerged, including BA.1, BA.2, BA.3, BA.4 and BA.5.

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What are the COVID subvariants we should really care about?

Confused with the Omicron alphabet soup? We make sense of subvariants such as BA.4 and BA.5 and what they mean for the COVID pandemic.

17/05/2022

XE is yet another COVID variant that has been discovered in recent weeks

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XE variant: What we know about the new COVID strain found in England

Scientists think this hybrid variant combining two strains of Omicron may be even more infectious with more than a thousand confirmed cases.

30/04/2022

Research assistant Robert demonstrates how to prepare a sample for sequencing at the Wellcome Sanger Institute, Genome Campus, Hinxton, Cambridgeshire, England

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How a UK lab is COVID hunting and bolstering a global variant network

Labs in the UK have a new mission: sharing what they’ve learned with other scientists because COVID has no regard for national borders.

13/01/2022

The new COVID variant B.1.640.2 was found in France in November.

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A new COVID variant has been found in France. Should we be worried?

Experts have been downplaying a media storm surrounding a COVID variant that was found in France in November. Is it a concern?

05/01/2022

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