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...
Source: aljazeera.com