AstraZeneca Says Its COVID Vaccine 79% Effective in U.S. Trial
MONDAY, March 22, 2021 (HealthDay News) — AstraZeneca’s coronavirus vaccine was 79 percent effective in protecting against COVID-19 infection in a large U.S. clinical trial, the company announced Monday. The findings may help restore confidence in the vaccine that was lost recently after more than a dozen countries, mostly inContinue Reading