US EditionCDC Studies Suggest Slumping Flu Shot Protection
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2 Articles
CDC Studies Suggest Slumping Flu Shot Protection
(MedPage Today) -- This season's influenza vaccine effectiveness (VE) rates against outpatient visits and hospitalizations may be lower than last season's, pushed in part by a viral mismatch between the vaccine virus and circulating strains, according...
Influenza Vaccine Effectiveness Lower in Recent Months, Preliminary Data Show
The effectiveness of vaccines against influenza dropped during the 2025–2026 virus season, officials said on March 12, about two months after the Centers for Disease Control and Prevention (CDC) stopped recommending flu vaccination for all children. Vaccine effectiveness for late 2025 and early 2026 against outpatient visits and hospitalization was pegged at 14 percent to 48 percent among children, Dr. Lisa Grohskopf, with the CDC’s Influenza Di…
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