The bivalent mRNA boosters from Pfizer-BioNTech and Moderna were 48% effective against symptomatic infection from the predominant omicron subvariant (XBB/XBB.1.5) in persons aged 18-49 years according to early data published by the CDC nbcnews.com Submitted by shiruken t3_10lcgah on January 25, 2023 at 10:58 PM in science 75 comments 337
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