Oxford kept Covid-19 vaccine trial volunteers in dark about dosing error, letter shows

Oxford kept Covid-19 vaccine trial volunteers in dark about dosing error, letter shows About 1,500 of the initial volunteers in a late-stage clinical trial of the Oxford/AstraZeneca Covid-19 vaccine were given the wrong dose but weren't informed that a mistake had been made after the blunder was discovered, documents obtained by Reuters show. https://ift.tt/eA8V8J