The last few weeks we’ve been feverish in our coverage of vaccines - the evidence base for them is, how they’ve been evaluated and licensed, and who’s going to get them first.

But what we’ve not covered much is what it’s like to do, and take part in, a vaccine trial.

In this special podcast, we’re going to hear from John Wright, director of the Bradford Institute of Health Research. He’s been keeping a “doctors diary” for BBC radio, and in this podcast we’re doing a deeper dive into that - and finding out about the people working on, and volunteering to test, a corona virus vaccine.