Invisible Impact: How Vaccines Seem to Make Diseases Disappear
When public health is working, nothing happens; people don't get sick or hurt or die, and in a way, public health, at it's very best, is invisible. This week, we're talking about one function of public health that embodies that idea — vaccines. When vaccination works the way it's intended to, nothing happens, diseases like polio seem to disappear. But are they really gone or is it just public health at work?