/tags/astrazeneca astrazeneca en-US Copyright Mon, 22 Mar 2021 04:52:00 GMT /news-partners/2021-03-22/astrazeneca-vaccine-can-prevent-covid-19-late-stage-study-says Results of the trial, which involved more than 32,000 volunteers, showed two doses of the vaccine administered four weeks apart had an efficacy of 79% at preventing symptoms of COVID-19. Mon, 22 Mar 2021 04:52:00 GMT /news-partners/2021-03-22/astrazeneca-vaccine-can-prevent-covid-19-late-stage-study-says Jaclyn Diaz /news-partners/2021-02-10/up-against-mutants-who-says-astrazeneca-vaccine-is-still-a-good-bet A small study in South Africa has raised concerns about the effectiveness of the AstraZeneca vaccine, particularly in fighting virus variants. Wed, 10 Feb 2021 19:27:00 GMT /news-partners/2021-02-10/up-against-mutants-who-says-astrazeneca-vaccine-is-still-a-good-bet Jason Beaubien /news/2020-09-09/covid-19-vaccine-trial-paused-before-ohio-state-testing-begins An unexplained illness in the United Kingdom has put a pause on the COVID-19 vaccine trial that Ohio State was slated to help administer.In a press… Wed, 09 Sep 2020 19:46:11 GMT /news/2020-09-09/covid-19-vaccine-trial-paused-before-ohio-state-testing-begins Nick Evans