University of Bradford to host COVID-19 vaccine booster trial 1st June 2021 The University of Bradford has announced that it will host COVID-19 vaccine booster trials at its Digital Health Enterprise Zone. The trial, which will last one year, is set to test the jabs as a possible precaution against variants of concern. It is being conducted by Bradford Teaching Hospital NHS Foundation Trust in partnership with the University, as part of a £90m Department of Health and Social Care (DHSC) initiative. Across the UK, the trials are being conducted at 18 sites in total and will involve 3,000 people, with 148 of those to be treated in Bradford.