FDA & Government News

Flu Vaccine Cut Hospitalizations Despite Drifted H3N2 Strain

Interim CDC estimates found the 2025–2026 vaccine reduced outpatient influenza visits by up to 41% and hospitalizations by up to 41%.

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    The 2025–2026 flu vaccine reduced outpatient and hospitalization rates.

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    Pediatric patients had the highest vaccine effectiveness.

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    Vaccine protection against influenza A (H3N2) was less effective.

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    CDC estimates indicated significant influenza burden in the US.

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    Variations in effectiveness observed across demographic groups.

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    Vaccination remains recommended for all eligible individuals.

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    Antiviral medications are key for at-risk patients.

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    Study results are preliminary and subject to change.

Original Source(s)

Flu Vaccine Cut Hospitalizations Despite Drifted H3N2 Strain

  • by Kerri Miller

  • March 17, 2026

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