In the second week of our coronavirus survival guide presented by Michelle Ackerley and Dr Xand Van Tulleken, we talk vaccines. Described as one of the greatest medical breakthroughs ever made, we look at the origin of inoculation and find out how other types of vaccination, especially the flu jab, gives us hope for the future. With special guest Sir Lenny Henry, plus some advice on how to cope with separation from our loved ones.