The delta variant is the most dangerous SARS-CoV-2 mutation yet
It is the most transmissible form of the virus—and probably deadlier, too. Fortunately vaccines are still effective against it
BUSINESSES IN ENGLAND had been eagerly anticipating June 21st—the “freedom day” when all coronavirus restrictions were to be lifted. But on June 14th Boris Johnson, Britain’s prime minister, dashed their hopes. It was “time to ease off the accelerator” he said. Cases, hospitalisations and admissions to intensive care were rising. Ireland, France and Germany are among countries that have tightened restrictions on travellers from Britain. The cause for concern is the delta variant of SARS-CoV-2 (the virus which causes covid-19).
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