{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["31(2)"],"submitter":["De Clercq A"],"pubmed_abstract":["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."],"journal":["Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12811705"],"repository":["biostudies-literature"],"pubmed_title":["Interim vaccine effectiveness against influenza virus among outpatients, France, October 2025 to January 2026."],"pmcid":["PMC12811705"],"pubmed_authors":["Duret T","Perez-Bercoff D","De Clercq A","Bal A","Jacques A","Wehrle V","Visseaux B","Josset L","Vieillefond V","Rameix-Welti MA","RELAB study group","Enouf V","Lina B","Blanquart F","Deleglise G","Haim-Boukobza S","Bernard-Stoecklin S","Oblette A"],"additional_accession":[]},"is_claimable":false,"name":"Interim vaccine effectiveness against influenza virus among outpatients, France, October 2025 to January 2026.","description":"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.","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Jan","modification":"2026-06-14T06:13:21.139Z","creation":"2026-06-14T03:16:46.802Z"},"accession":"S-EPMC12811705","cross_references":{"pubmed":["41540925"],"doi":["10.2807/1560-7917.ES.2026.31.2.2500992"]}}