Booster Shots Instrumental in Fighting Omicron, C.D.C. Data Show

Booster shots of the Pfizer-BioNTech and Moderna vaccines aren’t just preventing infections with the contagious Omicron variant — they’re also keeping infected Americans from ending up in the hospital, according to data published on Friday by the Centers for Disease Control and Prevention. The extra doses are 90 percent effective against hospitalization with the variant,…

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