JAMA Network
About The Study: This study estimated the effectiveness of COVID-19 vaccines against symptomatic infections due to the Delta and Omicron variants and severe outcomes (hospitalization or death) associated with these infections among adults in Ontario, Canada.
Authors: Jeffrey C. Kwong, M.D., of Public Health Ontario in Toronto, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2022.32760)
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