WHO says coronavirus herd immunity unlikely this year, even as vaccinations pick up

Scientists at the World Health Organization have warned that mass vaccinations would not bring about herd immunity to the coronavirus this year, even as one leading producer boosted its production forecast.The pandemic has infected more than 90 million people and the death toll has passed 1.94 million since China confirmed the first death in the central city of Wuhan a year ago. China has largely brought the virus under control, but is tackling a number of local infections.Infection numbers…
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