More Infectious Covid Delta Sub-Variant Spreading Fast in U.K., Survey Shows

Vaccine Boosters Are Key as Europe Battles New Wave of Virus

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By Naomi Kresge

November 18, 2021 at 10:35 AM UTC

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A more infectious new version of Covid-19’s delta variant is spreading fast in the U.K., accounting for about 12% of the samples gathered in the most recent government survey.