AstraZeneca’s COVID-19 vaccine is 74 percent effective in preventing symptomatic illness, according to data from its U.S. clinical trial published in the New England Journal of Medicine on Wednesday. The phase 3 trial involved more than 32,000 participants in the United States, Peru, and Chile, who either received two doses of the COVID-19 vaccine or
https://www.theepochtimes.com/astrazeneca-says-its-covid-19-vaccine-is-74-percent-effective-in-us-testing_4026266.html