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Antunes L, Mazagatos C, Martínez-Baz I, Gomez V, Borg ML, Petrović G, Duffy R, Dufrasne FE, Dürrwald R, Lazar M, Jancoriene L, Oroszi B, Husa P, Howard J, Melo A, Pozo F, Pérez-Gimeno G, Castilla J, Machado A, Džiugytė A, Karabuva S, Fitzgerald M, Fierens S, Tolksdorf K, Popovici SO, Mickienė A, Túri G, Součková L, Nicolay N, Rose AM. Effectiveness of the adapted bivalent mRNA COVID-19 vaccines against hospitalisation in individuals aged ≥ 60 years during the Omicron XBB lineage-predominant period: VEBIS SARI VE network, Europe, February to August, 2023. Euro Surveill 2024; 29:2300708. [PMID: 38240061 PMCID: PMC10797659 DOI: 10.2807/1560-7917.es.2024.29.3.2300708] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/18/2024] [Indexed: 01/22/2024] Open
Abstract
We conducted a multicentre hospital-based test-negative case-control study to measure the effectiveness of adapted bivalent COVID-19 mRNA vaccines against PCR-confirmed SARS-CoV-2 infection during the Omicron XBB lineage-predominant period in patients aged ≥ 60 years with severe acute respiratory infection from five countries in Europe. Bivalent vaccines provided short-term additional protection compared with those vaccinated > 6 months before the campaign: from 80% (95% CI: 50 to 94) for 14-89 days post-vaccination, 15% (95% CI: -12 to 35) at 90-179 days, and lower to no effect thereafter.
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Affiliation(s)
| | - Clara Mazagatos
- National Centre for Epidemiology, Institute of Health Carlos III, Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Iván Martínez-Baz
- Instituto de Salud Pública de Navarra - IdiSNA, Pamplona, Spain
- CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Verónica Gomez
- Epidemiology Department, National Health Institute Doutor Ricardo Jorge, Lisbon, Portugal
| | - Maria-Louise Borg
- Infectious Disease Prevention and Control Unit (IDCU), Health Promotion and Disease Prevention, Msida, Malta
| | | | - Róisín Duffy
- Health Service Executive-Health Protection Surveillance Centre (HPSC), Dublin, Ireland
| | - François E Dufrasne
- National Influenza Centre Laboratory of Viral Diseases, Sciensano, Brussels, Belgium
| | - Ralf Dürrwald
- National Reference Centre for Influenza, Robert Koch Institute, Berlin, Germany
| | - Mihaela Lazar
- Cantacuzino National Military-Medical Institute for Research and Development, Bucharest, Romania
| | - Ligita Jancoriene
- Clinic of Infectious Diseases and Dermatovenerology, Institute of Clinical Medicine, Medical Faculty, Vilnius University, Lithuania
| | - Beatrix Oroszi
- National Laboratory for Health Security, Epidemiology and Surveillance Centre, Semmelweis University, Budapest, Hungary
| | - Petr Husa
- University Hospital Brno, Masaryk University, Brno, Czechia
| | | | - Aryse Melo
- Infectious Diseases Department, National Health Institute Doutor Ricardo Jorge, Lisbon, Portugal
| | - Francisco Pozo
- National Centre for Microbiology, Institute of Health Carlos III, Madrid, Spain
| | - Gloria Pérez-Gimeno
- National Centre for Epidemiology, Institute of Health Carlos III, Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Jesús Castilla
- Instituto de Salud Pública de Navarra - IdiSNA, Pamplona, Spain
- CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Ausenda Machado
- Epidemiology Department, National Health Institute Doutor Ricardo Jorge, Lisbon, Portugal
| | - Aušra Džiugytė
- Infectious Disease Prevention and Control Unit (IDCU), Health Promotion and Disease Prevention, Msida, Malta
| | | | - Margaret Fitzgerald
- Health Service Executive-Health Protection Surveillance Centre (HPSC), Dublin, Ireland
| | - Sébastien Fierens
- Service Epidemiology of Infectious Diseases, Sciensano, Brussels, Belgium
| | - Kristin Tolksdorf
- Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
| | - Silvia-Odette Popovici
- National Institute of Public Health, National Centre for Communicable Diseases Surveillance and Control, Bucharest, Romania
| | - Auksė Mickienė
- Department of Infectious Diseases, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Gergő Túri
- National Laboratory for Health Security, Epidemiology and Surveillance Centre, Semmelweis University, Budapest, Hungary
| | - Lenka Součková
- University Hospital Brno, Masaryk University, Brno, Czechia
| | - Nathalie Nicolay
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
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