British coronavirus variant develops new mutation linked to lower vaccine efficacy

The British variant of the coronavirus has developed a new, concerning mutation in a small number of cases, which scientists said makes it similar to the South African and Brazilian variants and could reduce the efficacy of vaccines.The emergence of the mutation to the variant first discovered in Britain highlights how complicated exiting Covid-19 lockdown will be even once vaccines are rolled out.Public Health England said there had been 11 reports of the British variant which feature the…

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