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Effectiveness of mRNA COVID-19 Monovalent and Bivalent Vaccine Booster Doses Against Omicron Severe Outcomes Among Adults Aged ≥50 Years in Ontario, Canada: A Canadian Immunization Research Network Study
Journal Title
The Journal of Infectious Diseases
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2023-10-05
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229
Publication Issue
2
Publication Begin
394
Publication End
397
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jiad419.pdf
Adobe PDF, 383.23 KB
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Abstract
We estimated the effectiveness of booster doses of monovalent and bivalent mRNA COVID-19 vaccines against Omicron-associated severe outcomes among adults aged ≥50 years in Ontario, Canada. Monovalent and bivalent mRNA COVID-19 booster doses provided similar strong initial protection against severe outcomes. Uncertainty remains around waning of protection from these vaccines.
Citation
Grewal R, Buchan SA, Nguyen L, Nasreen S, Austin PC, Brown KA, Gubbay J, Lee N, Schwartz KL, Tadrous M, Wilson K, Wilson SE, Kwong JC. Effectiveness of mRNA COVID-19 Monovalent and Bivalent Vaccine Booster Doses Against Omicron Severe Outcomes Among Adults Aged ≥50 Years in Ontario, Canada: A Canadian Immunization Research Network Study. J Infect Dis. 2024 Feb 14;229(2):394-397. doi: 10.1093/infdis/jiad419. PMID: 37798119; PMCID: PMC10873169.