The efficacy of the booster shots in preventing hospitalizations, however, has dropped from 94 percent during the delta wave to 82 percent during the omicron wave, one study finds
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Watch VideoThe sweeping “zero-tolerance” strategy that China has used to keep COVID-19 case numbers low and its economy..
Watch VideoInfluential government advisers are strongly urging that teens as young as 12 get COVID-19 boosters as soon as they're..
An influential government advisory panel is considering COVID-19 boosters for younger teens, as the U.S. battles the omicron surge..
