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Rose AMC, Pozo F, Martínez-Baz I, Mazagatos C, Bossuyt N, Cauchi JP, Petrović G, Loghin II, Vaikutyte R, Buda S, Machado A, Duffy R, Oroszi B, Howard J, Echeverria A, Andreu C, Barbezange C, Džiugytė A, Nonković D, Popescu CP, Majauskaite F, Tolksdorf K, Gomez V, Domegan L, Horváth JK, Castilla J, García M, Demuyser T, Borg ML, Tabain I, Lazar M, Kubiliute I, Dürrwald R, Guiomar R, O'Donnell J, Kristóf K, Nicolay N, Bacci S, Kissling E. Vaccine effectiveness against influenza hospitalisation in adults during the 2022/2023 mixed season of influenza A(H1N1)pdm09, A(H3N2) and B circulation, Europe: VEBIS SARI VE hospital network. Influenza Other Respir Viruses 2024; 18:e13255. [PMID: 38403302 PMCID: PMC10894713 DOI: 10.1111/irv.13255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 02/27/2024] Open
Abstract
We conducted a multicentre hospital-based test-negative case-control study to measure vaccine effectiveness (VE) against PCR-confirmed influenza in adult patients with severe acute respiratory infection (SARI) during the 2022/2023 influenza season in Europe. Among 5547 SARI patients ≥18 years, 2963 (53%) were vaccinated against influenza. Overall VE against influenza A(H1N1)pdm09 was 11% (95% CI: -23-36); 20% (95% CI: -4-39) against A(H3N2) and 56% (95% CI: 22-75) against B. During the 2022/2023 season, while VE against hospitalisation with influenza B was >55%, it was ≤20% for influenza A subtypes. While influenza vaccination should be a priority for future seasons, improved vaccines against influenza are needed.
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Affiliation(s)
| | - Francisco Pozo
- National Centre for Microbiology, Institute of Health Carlos III, Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Iván Martínez-Baz
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Salud Pública de Navarra-IdiSNA, Pamplona, Spain
| | - Clara Mazagatos
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- National Centre for Epidemiology, Institute of Health Carlos III, Madrid, Spain
| | | | - John Paul Cauchi
- Department for Health Regulation, Health Promotion and Disease Prevention, Msida, Malta
| | | | - Isabela I Loghin
- St Parascheva Clinical Hospital of Infectious Diseases, Iasi, Romania
| | | | | | - Ausenda Machado
- National Institute of Health Dr Ricardo Jorge, Lisbon, Portugal
| | - Róisín Duffy
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | | | | | - Aitziber Echeverria
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Salud Pública de Navarra-IdiSNA, Pamplona, Spain
| | - Cristina Andreu
- Subdirección de Epidemiología, Dirección General de Salud Pública, Servicio Extremeño de Salud, Mérida, Spain
| | | | - Aušra Džiugytė
- Department for Health Regulation, Health Promotion and Disease Prevention, Msida, Malta
| | - Diana Nonković
- Teaching Public Health Institute of Split-Dalmatia County, Split, Croatia
| | - Corneliu-Petru Popescu
- Dr Victor Babes Clinical Hospital of Infectious and Tropical Diseases, Bucharest, Romania
| | - Fausta Majauskaite
- Institute of Clinical Medicine, Medical Faculty, Vilnius University, Vilnius, Lithuania
| | | | - Verónica Gomez
- National Institute of Health Dr Ricardo Jorge, Lisbon, Portugal
| | - Lisa Domegan
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | | | - Jesús Castilla
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Salud Pública de Navarra-IdiSNA, Pamplona, Spain
| | - Miriam García
- Dirección General de Salud Pública, Departamento de Sanidad, Gobierno de Aragón, Zaragoza, Spain
| | - Thomas Demuyser
- Department of Microbiology and Infection control, UZ Brussel, Brussels, Belgium
| | - Maria-Louise Borg
- Department for Health Regulation, Health Promotion and Disease Prevention, Msida, Malta
| | - Irena Tabain
- Croatian Institute of Public Health, Zagreb, Croatia
| | - Mihaela Lazar
- "Cantacuzino" National Military-Medical Institute for Research and Development, Bucharest, Romania
| | - Ieva Kubiliute
- Institute of Clinical Medicine, Medical Faculty, Vilnius University, Vilnius, Lithuania
| | | | - Raquel Guiomar
- National Institute of Health Dr Ricardo Jorge, Lisbon, Portugal
| | - Joan O'Donnell
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | | | - Nathalie Nicolay
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Sabrina Bacci
- European Centre for Disease Prevention and Control, Stockholm, Sweden
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