CDC study shows three-fourths of people infected in Massachusetts coronavirus outbreak were vaccinated but few required hospitalization

CDC study shows three-fourths of people infected in Massachusetts coronavirus outbreak were vaccinated but few required hospitalization

By Carolyn Johnson et al. A sobering scientific analysis published Friday found that three-quarters of the people infected during an explosive coronavirus outbreak fueled by the delta variant were fully vaccinated. The report on the Massachusetts cases, from the...

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More Covid Mysteries

More Covid Mysteries

There’s much to learn about how the virus spreads. By David Leonhardt Consider these Covid-19 mysteries: In India — where the Delta variant was first identified and caused a huge outbreak — cases have plunged over the past two months. A similar drop may now...

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