astrazeneca

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.

A small study in South Africa has raised concerns about the effectiveness of the AstraZeneca vaccine, particularly in fighting virus variants.

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…