Sask. stops giving AstraZeneca as 1st dose over supply issues, considers Pfizer for 2nd May 12, 2021 Saskatchewan’s chief medical health officer says it’s “likely” those who received AstraZeneca as their first dose of COVID-19 vaccine could have Pfizer-BioNTech for their second due to supply issues. Labels: CBC | Health News health Share to: Twitter Facebook URL Print Email
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