Article Dans Une Revue Eurosurveillance Année : 2026

Interim vaccine effectiveness against influenza virus among outpatients, France, October 2025 to January 2026

Alexandra Jacques
  • Fonction : Auteur

Résumé

In Europe, the 2025/26 seasonal influenza epidemic started in October 2025. Co-circulation of A(H3N2) and A(H1N1)pdm09 was observed in several countries including France. We estimated early vaccine effectiveness (VE) against influenza virus in French outpatients (5,451 positives/18,816 negatives). A significant VE across all age groups was measured: 28% (95% CI: 17–37) for those aged ≥ 65 years, 45% (95% CI: 36–53) for 18–64-year-olds and 57% (95% CIs: 29–74) for 0–17-year-olds. Reinforcing vaccination uptake is warranted.

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hal-05482003 , version 1 (28-01-2026)

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Allan de Clercq, François Blanquart, Vincent Vieillefond, Benoit Visseaux, Alexandra Jacques, et al.. Interim vaccine effectiveness against influenza virus among outpatients, France, October 2025 to January 2026. Eurosurveillance, 2026, 31 (2), pp.2500992. ⟨10.2807/1560-7917.ES.2026.31.2.2500992⟩. ⟨hal-05482003⟩
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