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Study reveals fundamental changes in the omicron variant


The omicron variant of SARS-CoV-2 represents a step-change in the COVID-19 pandemic with record numbers of new daily infections being reported around the globe. However, quite why omicron is spreading so rapidly remains unknown.

Now, researchers at the MRC-University of Glasgow Centre for Virus Research have used laboratory experiments and real world infection data to investigate omicron. Their work, published as a pre-print study, has revealed fundamental changes that are likely to be important for omicron spread and disease.

Researchers found in laboratory tests that omicron is largely unaffected by the antibodies provided by two doses of COVID-19 vaccine, but responses are improved by a third-dose booster. Importantly, this is confirmed by analysis of real world infection data; omicron escape immunity from two vaccine doses, but three doses restores good levels of protection.

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