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What are the risks of extending expiry date for AstraZeneca-Oxford vaccines?
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After Health Canada extended the expiry date for some AstraZeneca-Oxford vaccine doses, infectious diseases physician Dr. Lynora Saxinger answers questions about how expiry dates can change and if there are any risks from doing so.
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The National is CBC's flagship nightly news program, featuring the day's top stories with in-depth and original journalism, with hosts Adrienne Arsenault and Andrew Chang in Toronto, Ian Hanomansing in Vancouver and the CBC's chief political correspondent, Rosemary Barton in Ottawa.
Watch The National live on YouTube Sunday-Friday at 9 p.m. ET
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The National is CBC's flagship nightly news program, featuring the day's top stories with in-depth and original journalism, with hosts Adrienne Arsenault and Andrew Chang in Toronto, Ian Hanomansing in Vancouver and the CBC's chief political correspondent, Rosemary Barton in Ottawa.
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