<p>Dr Myhill, ably supported by Craig Robinson, writes: 'It is generally believed that infection is a killer of the past. Wrong ? research now shows that our big killers, from cancers and coronaries to dementia and diabetes are largely infection-driven. Indeed, it is difficult to find a pathology that does not have an infectious associate. Cheap and effective defences are within the grasp of all of us. We have all the weapons we need to win the a...