How much protection you get from one shot of the Pfizer, AstraZeneca, and Moderna vaccines, according to the best available data

How much protection you get from one shot of the Pfizer, AstraZeneca, and Moderna vaccines, according to the best available data

Business Insider

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One shot of Pfizer or Moderna vaccines appears at least 80% effective against symptomatic COVID-19 for at least 21 days. For AstraZeneca, it's 70%.

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