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The first results of the vaccine developed by the University of Oxford are expected today.

They will be the results of the “phase one” study involving around 1,000 volunteers. These are the earliest type of clinical trial in people.

Their primary purpose is to ensure the vaccine is safe enough to give to more people.

But we may also get insight into the type of immune response provoked by the jab – does it lead to the production of antibodies or stimulate other parts of the immune system?

What we won’t find out today is whether the vaccine “works” – can it stop you getting infected or at least lessen symptoms?

That will require trials involving far more people and in countries where there is far more coronavirus going around than there is currently in the UK.