let's speak now to professor andrew pollard from the oxford vaccine group and lydia guthrie, who tookn i saw the advert where the team were looking for participants to volunteer in oxford, i felt straightaway that it was just a really good thing to do to try to make a very small contribution to this massive human effort that the scientists have made, that everybody will benefit from. and lydia, thank you for doing it, on everybody‘s behalf, but some people think, and i think, it is a brave thing to do, because this is untested, isn't it? it is, and i guess that's the point. the researchers were very honest with all the participants that they had skipped out some of the initial animal testing stages that would usually be used for vaccines, because of the urgency of the coronavirus situation. but i felt, reading all the material from the research team, i felt it was a small risk. because it was untested, they couldn't guarantee they wouldn't be any complications, but it felt like any complications, but it felt like a measured risk, and a risk that i could take. it also felt like the tra