CBS Sunday Morning did a story on people who think H1N1 influenza (and other not currently newsworthy) vaccinations are bad for you. Did these people sleep through biology in High School? Don’t they understand that the body develops immunity by being exposed to a weakened or similar copy of the pathogen?
More than likely these people will also be the first ones into the emergency room, further straining limited medical resources, when they contract a disease they could have prevented by getting a vaccination.
This behavior appears to me to be the embodiment of natural selection.