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Effectiveness of COVID-19 vaccines in preventing SARS-CoV-2 infection and hospitalisation, Navarre, Spain, January to April 2021.
- Source :
-
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin [Euro Surveill] 2021 May; Vol. 26 (21). - Publication Year :
- 2021
-
Abstract
- COVID-19 vaccine effectiveness was evaluated in close contacts of cases diagnosed during January-April 2021. Among 20,961 contacts, 7,240 SARS-CoV-2 infections were confirmed, with 5,467 being symptomatic and 559 leading to hospitalisations. Non-brand-specific one and two dose vaccine effectiveness were respectively, 35% (95% confidence interval (CI): 25 to 44) and 66% (95% CI: 57 to 74) against infections, 42% (95% CI: 31 to 52) and 82% (95% CI: 74 to 88) against symptomatic infection, and 72% (95% CI: 47 to 85) and 95% (95% CI: 62 to 99) against COVID-19 hospitalisation. The second dose significantly increased effectiveness. Findings support continuing complete vaccination.
Details
- Language :
- English
- ISSN :
- 1560-7917
- Volume :
- 26
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 34047271
- Full Text :
- https://doi.org/10.2807/1560-7917.ES.2021.26.21.2100438