Swine Flu has been all over the media this week, but how much of what we’ve heard is fact and how much is exaggeration. In this week’s programme we pick apart the media frenzy. With specialists in vaccine technology and respiratory diseases we look at the scientific facts about Swine Flu. We find out how long it really takes to make an effective vaccine. We see if science can do more and we compare the readiness of different parts of the world to respond to a potential epidemic.