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Cross-sectional study on protective antibodies against influenza A virus subtypes and cross-protection against influenza A(H3N2) subclade K, Portugal, August 2025

2026-02-12Artigo científico Acesso aberto
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dc.contributor.authorPortuguese Laboratory Network for the Diagnosis of Influenza and Respiratory Viruses
dc.contributor.authorGuiomar, Raquel
dc.contributor.authorHenriques, Camila
dc.contributor.authorda Silva, Susana Pereira
dc.contributor.authorGomes, Licínia
dc.contributor.authorDias, Daniela
dc.contributor.authorVerdasca, Nuno
dc.contributor.authorNunes, Baltazar
dc.contributor.authorRodrigues, Ana Paula
dc.contributor.authorGuimarães, João Tiago
dc.contributor.authorCardoso, Maria João
dc.contributor.authorRamos, Angelica
dc.contributor.authorPereira, Paulo
dc.contributor.authorCastro, Ana Paula
dc.contributor.authorMarques, Maria Helena
dc.contributor.authorMota, Paula
dc.contributor.authorFerreira, Ana
dc.contributor.authorLopes, Paulo
dc.contributor.authorAbreu, Gabriela
dc.contributor.authorPedrosa, Adriana
dc.contributor.authorSilva, Ana Cristina
dc.contributor.authorVarzim, Póvoa de
dc.contributor.authorMartins, Nádia Sousa
dc.contributor.authorMesquita, Aurélio
dc.contributor.authorMajar, Marina
dc.contributor.authorCalheiros, Ana Filipa
dc.contributor.authorMota Freitas, José António
dc.contributor.authorVieira, Sandra Margarida
dc.contributor.authorGomes, Susana
dc.contributor.authorMagalhães, Cacilda
dc.contributor.authorSoares, Maria J.
dc.contributor.authorMontanha, Maria José
dc.contributor.authorSilva, Helena
dc.contributor.authorFerreira, Carla
dc.contributor.authorReis, Teresa
dc.contributor.authorCosta, Tiago
dc.contributor.authorMarques, Bruno
dc.contributor.authorRodrigues, Ricardo
dc.contributor.authorCunha, Mario
dc.contributor.authorSeabra, Sofia
dc.contributor.authorPires, Ana
dc.contributor.authorNunes, Diana
dc.contributor.authorToscano, Cristina
dc.contributor.authorSilva, Luís
dc.contributor.authorLuís, João
dc.contributor.authorMira, Ana
dc.contributor.authorSerrano, Ana
dc.contributor.authorMoreira, Inês
dc.contributor.authorLoureiro, Ana
dc.contributor.authorMarques, Ana
dc.contributor.authorAlves, José
dc.contributor.institutionEscola Nacional de Saúde Pública (ENSP)
dc.contributor.pblEuropean Centre for Disease Prevention and Control
dc.date.accessioned2026-05-14T15:28:02Z
dc.date.available2026-05-14T15:28:02Z
dc.date.issued2026-02-12
dc.descriptionPublisher Copyright: © 2026, European Centre for Disease Prevention and Control (ECDC). All rights reserved.
dc.description.abstractThe 2025/26 season was marked by co-circulation of influenza A subtypes, with the first detection of A(H3N2) subclade K in September 2025. In August 2025 in Portugal, 14.8% (95% CI: 12.2–17.8) of 886 persons tested had cross-protective antibodies against this subclade. The overall seroprevalence against circulating A(H1N1) pdm09 strains was 28.1% (95% CI: 24.4–32.0). These data highlight the presence of previous cross-reactive antibodies and the possible advantage of vaccination in the extent of detectable antibodies against influenza viruses.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent437567
dc.identifier.doi10.2807/1560-7917.ES.2026.31.6.2600070
dc.identifier.issn1025-496X
dc.identifier.otherPURE: 162944010
dc.identifier.otherPURE UUID: ec63e98d-f89f-4f15-84ba-ffcfc5c96730
dc.identifier.otherScopus: 105030219107
dc.identifier.otherPubMed: 41684322
dc.identifier.otherPubMedCentral: PMC12905529
dc.identifier.otherWOS: 001699048500001
dc.identifier.urihttp://hdl.handle.net/10362/203096
dc.identifier.urlhttps://www.scopus.com/pages/publications/105030219107
dc.language.isoeng
dc.peerreviewedyes
dc.subjectEpidemiology
dc.subjectMicrobiology
dc.subjectImmunology and Microbiology (miscellaneous)
dc.subjectPublic Health, Environmental and Occupational Health
dc.subjectMicrobiology (medical)
dc.subjectVirology
dc.subjectInfectious Diseases
dc.subjectSDG 3 - Good Health and Well-being
dc.titleCross-sectional study on protective antibodies against influenza A virus subtypes and cross-protection against influenza A(H3N2) subclade K, Portugal, August 2025en
dc.typejournal article
degois.publication.issue6
degois.publication.titleEUROSURVEILLANCE
degois.publication.volume31
dspace.entity.typePublication
rcaap.rightsopenAccess

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