There was massive excitement yesterday as news broke that a coronavirus vaccine, developed by the University of Oxford, appears to be safe and appears to be triggering an immune response with some saying that it could be rolled out by Christmas.

But how likely is it? And how do we know that it's working?

Speaking to Dermot and Dave, Kingston Mills, Professor of Experimental Immunology at Trinity College Dublin explained why terms such as 'anti-bodies' and 't-cells' look set to join our vocabulary alongside 'reproductive rate' and 'social distancing' as we wait and see the next results of the human trials.

While it is certainly an exciting development, Professor Mills also gave some insight into the next stages and how long it could be before it is widely available to the public.