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Source: https://www.cp24.com/news/new-ontar...-strong-protection-against-variants-1.5496914
New Ontario study finds even one COVID-19 vaccine dose provides strong protection against variants
Chris Herhalt, Web Content Writer, CP24
Published Monday, July 5, 2021 12:08PM EDT
Last Updated Monday, July 5, 2021 12:08PM EDT
A new study of Ontario COVID-19 data finds all vaccines approved for use in Canada are doing better than first expected at preventing symptomatic infection, hospitalization or death from coronavirus variants of concern, even after just one dose.
The pre-print study published on Saturday shows one dose of the Pfizer, Moderna or AstraZeneca COVID-19 vaccines had between a 48 to 83 per cent effectiveness against symptomatic infection by any of the four variants of concern detected in Ontario recipients this past winter in spring.
Each of the vaccines also had a 78 to 96 per cent efficacy against preventing hospitalization or death from infection by a variant of concern, two weeks after a first dose...
New Ontario study finds even one COVID-19 vaccine dose provides strong protection against variants
Chris Herhalt, Web Content Writer, CP24
Published Monday, July 5, 2021 12:08PM EDT
Last Updated Monday, July 5, 2021 12:08PM EDT
A new study of Ontario COVID-19 data finds all vaccines approved for use in Canada are doing better than first expected at preventing symptomatic infection, hospitalization or death from coronavirus variants of concern, even after just one dose.
The pre-print study published on Saturday shows one dose of the Pfizer, Moderna or AstraZeneca COVID-19 vaccines had between a 48 to 83 per cent effectiveness against symptomatic infection by any of the four variants of concern detected in Ontario recipients this past winter in spring.
Each of the vaccines also had a 78 to 96 per cent efficacy against preventing hospitalization or death from infection by a variant of concern, two weeks after a first dose...