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Bivalent COVID-19 vaccines provide added protection, real-world data show

Real-world data showed that bivalent messenger RNA vaccines against SARS-CoV-2 provided “significant additional protection” against symptomatic COVID-19 among people who had received two, three or four previous monovalent doses.

Updated COVID boosters add to benefit of single-strain doses

The boosters confer 28% to 56% more protection against symptomatic infections than 2 to 4 doses of the original vaccines, a new study estimates.

Bivalent mRNA vaccines could enhance protective efficacy against COVID-19

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