A potential COVID-19 vaccine produced by AstraZeneca was one of two being tested in Chicago, but now, the company has put a temporary hold on its large-scale Phase III trial.
A potential COVID-19 vaccine produced by AstraZeneca was one of two being tested in Chicago, but now, the company has put a temporary hold on its large-scale Phase III trial.
A serious adverse reaction in a volunteer has triggered the safety protocol for the large-scale trial.