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Effectiveness of a fourth dose of covid-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study

OBJECTIVES: To estimate the marginal effectiveness of a fourth versus third dose and the vaccine effectiveness of mRNA covid-19 vaccines BNT162b2 and mRNA-1273 against any infection, symptomatic infection, and severe outcomes (hospital admission or death) related to the omicron variant. DESIGN: Test...

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Detalles Bibliográficos
Autores principales: Grewal, Ramandip, Kitchen, Sophie A, Nguyen, Lena, Buchan, Sarah A, Wilson, Sarah E, Costa, Andrew P, Kwong, Jeffrey C
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group Ltd. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9257064/
https://www.ncbi.nlm.nih.gov/pubmed/35793826
http://dx.doi.org/10.1136/bmj-2022-071502