AstraZeneca PLC said Friday that real-world data coming from Canada suggest that its Covid-19 vaccine is effective against hospitalization or death from disease caused by virus variants after just one dose.
According to study results from the Canadian Immunization Research Network, Public Health Agency of Canada and the Canadian Institutes of Health Research, one dose of AstraZeneca's vaccine is 82% effective at preventing hospitalization or death caused by the coronavirus's Beta and Gamma variants. The same dose is also seen as effective at preventing hospitalizations and deaths from the virus's Delta variant, with 87% effectiveness against hospitalizations and 90% effectiveness in preventing death, the company said.
Study results were published as a pre-print, meaning they haven't yet been peer-reviewed.
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