백신 효과 논란에…아스트라제네카 “추가 글로벌 임상시험 추진”<br /><br />Astrazeneca is planning an additional global trial for its COVID-19 vaccine candidate to clear up any lingering uncertainties.<br />The company's CEO said Thursday that an additional study is needed to validate the 90-percent efficacy rate shown in a portion of an existing trial.<br />However, the new test is not expected to hold up approvals in the U.K. or the EU.<br />Questions have been mounting after the company and its partner Oxford University,... acknowledged their trial results might've been affected by an error.<br />
