March 25, 2021
AstraZeneca releases updated coronavirus vaccine data
AstraZeneca published revised efficacy data for its coronavirus vaccine, now finding that its vaccine is 76% effective in preventing symptomatic cases (down from 79%) while remaining 100% effective against severe cases and hospitalizations. The revision follows a statement issued by US health officials this week, which suggested that AstraZeneca may have used outdated or incomplete data in its initial findings.
