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How viral vector and mRNA COVID-19 vaccines work

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From viral vector vaccines like AstraZeneca to mRNA vaccines like Pfizer and Moderna, they all have the same goal: to train your body how to fight off COVID-19. But, they use different strategies to create antibodies.

For example, AstraZeneca uses a crippled virus to deliver the coronavirus spike protein, while Pfizer and Moderna use mRNA, the part of the coronavirus' genetic code and teaches your cells how to make a protein that will trigger an immune response.

Global’s Gloria Henriquez explains how the different COVID-19 vaccines available in Canada work.

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Category
U.S. & Canada
Tags
global news, how do COVID-19 vaccines work, how does viral vector vaccine work
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