Oxford-AstraZeneca volunteers kept in dark about dosing error
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 were not informed that a mistake had been made after the blunder was discovered, documents obtained by Reuters news agency show. Instead, 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 Pollard, and sent to the trial subjects. ...
Source: aljazeera.com