Volunteers in AstraZeneca trial given wrong dose, documents reveal
UK and has been touted as a low-cost weapon against the pandemic. 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. The dosing mishap was presented to the trial participants in a letter dated June 8 as an opportunity for University of Oxford researchers to learn how well the vaccine works at different doses. The letter was signed by the trial's chief investigator, Oxford professor Andrew...