Astrazeneca’s COVID-19 Vaccine Demonstrates 76% Efficacy

March 26, 2021

AstraZeneca has released an updated statement revealing their vaccine demonstrates 76% efficacy against symptomatic COVID-19 and 100% efficacy against severe COVID-19 and hospitalization. They previously stated a 79% efficacy based on data through February 17, 2021. Experts credit this discrepancy to a rounding error (1).

These results have been submitted for review to the Data Safety Monitoring Board and will be the “basis for a regulatory submission for Emergency Use Authorization to the US Food and Drug Administration in the coming weeks” (2).

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