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High vaccine effectiveness against severe COVID-19 in the elderly in Finland before and after the emergence of Omicron
BACKGROUND: The elderly are highly vulnerable to severe COVID-19. Waning immunity and emergence of Omicron have caused concerns about reduced effectiveness of COVID-19 vaccines. The objective was to estimate vaccine effectiveness (VE) against severe COVID-19 among the elderly. METHODS: This nationwi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9636823/ https://www.ncbi.nlm.nih.gov/pubmed/36335289 http://dx.doi.org/10.1186/s12879-022-07814-4 |