Coronavirus Vaccine: How far have we come?

In this episode, Science and Environment Editor Kevin O’Sullivan brings us up to speed on the latest developments of the coronavirus vaccine. As Covid-19 spreads rapidly across the world, research is taking place at breakneck speed. It is a global effort involving many different countries, institutions and individual researchers, all facing huge challenges along the way. So who is making the most progress and when will we see a vaccine made available to the public?