AstraZeneca today said its AZD1222 COVID-19 vaccine candidate is safe and effective, based on data culled from a phase 3 clinical trial of 32,449 U.S. patients. 

The drug maker said its two-dose candidate is 79% effective in preventing symptomatic COVID-19, with a 100% efficacy against severe or critical disease and hospitalization. Based on its results, AstraZeneca said it would formally apply for an emergency use authorization with the Food and Drug Administration.
 

 

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