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Global National
May 11 2021 7:56pm

Ontario joins Alberta in halting first doses of AstraZeneca vaccine

Ontario is now halting first doses of AstraZeneca’s COVID-19 vaccine amid an increased risk in rare blood clot linked to the shot. The decisions also comes after Alberta made a similar move, saying it’s primarily because of the vaccine’s dwindling supply. Eric Sorensen reports on the growing uncertainty and the evolving science around the vaccine.

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