AstraZeneca vaccine is 79% effective against symptomatic Covid-19, company says – CNN

Uploaded by on March 22, 2021 at 5:53 am

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By Niamh Kennedy, CNN

Updated 5:45 AM ET, Mon March 22, 2021

Source Article from https://www.cnn.com/2021/03/22/health/astrazeneca-vaccine-efficacy-us-based-clinical-trial/index.html

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