Which COVID-19 vaccine is better? (spoiler, they’re all good)
Published : 02-04-2021 - Duration : 00:04:35 - Like : 2,315
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Dr. Samir Gupta explains how the four COVID-19 vaccines now approved in Canada (Pfizer, Moderna, AstraZeneca, Janssen) work and why efficacy rates aren’t the most important number to look at. #COVID19vaccines #Vaccines #COVID19 Watch The Nation...
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