What's different about each vaccine? Your COVID-19 vaccine questions answered
TORONTO -- The coronavirus vaccine rollout has given some hope for an end to the pandemic, especially as Canada ramps up its immunization efforts, but much remains unclear as new variants spread.
The Pfizer-BioNTech vaccine was the first to circulate among priority groups in 2020, followed by the Moderna shot in late December. Health Canada approved a third candidate, the Oxford-AstraZeneca vaccine, on Feb. 26, and approved a one-shot vaccine from Johnson & Johnson’s Janssen Pharmaceuticals on March 5. A fifth vaccine by Novavax is still under review. Whether the vaccines will mean a return to normal remains to be seen. Meanwhile, the latest federal modelling data suggests variants of the coronavirus could spark a third wave long before most of the country is vaccinated.
CTVNews.ca readers submitted their burning questions about COVID-19 immunization and we posed them to infectious disease experts Drs. Isaac Bogoch, Zain Chagla, Sumon Chakrabarti, Anna Banerji, Marla Shapiro, Hassan Masri, and Amy Tan. Here’s what they said. Note: Questions have been edited and condensed for clarity.
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