Flu shot effectiveness this season: 4 key takeaways

Preliminary estimates show the flu vaccine was up to 55% effective at preventing hospitalizations among adults this season, according to a Feb. 27 CDC report.

Feb 28, 2025 - 16:50
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Flu shot effectiveness this season: 4 key takeaways

Preliminary estimates show the flu vaccine was up to 55% effective at preventing hospitalizations among adults this season, according to a Feb. 27 CDC report.