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Articles on Oxford/AstraZeneca vaccine

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The AstraZeneca vaccine was 70 per cent effective against symptomatic COVID-19 infection in a large multinational study, and recently reported 76 per cent overall efficacy against symptomatic COVID-19 in another large study done primarily in the United States. THE CANADIAN PRESS/John Woods

AstraZeneca COVID-19 vaccine FAQ: Why do the age recommendations keep changing? Does it cause VIPIT blood clots? Is it effective against variants?

With changing recommendations about AstraZeneca's COVID-19 vaccine making headlines, many people have questions about its use.
A COVID-19 vaccine is administered at a clinic at Olympic Stadium in Montréal on March 1, 2021, marking the beginning of mass vaccination in the Province of Québec based on age. THE CANADIAN PRESS/Paul Chiasson

COVID-19 vaccine FAQs: Efficacy, immunity to illness vs. infection (yes, they’re different), new variants and the likelihood of eradication

With four COVID-19 vaccines approved for use in Canada, it's time to answer FAQs about efficacy, immunity, eradication and variants.

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