Kind of surprised how idiotic you are, sir. You see, the issue with diseases, contagious or non contagious, is that American doctors and scientists think they can control these diseases. Truly, however, you are the dumb citizen, because you fail to realize that the reason there are outbreaks of diseases now is because every time we make an immunization, the disease evolves and becomes immune to the vaccination. This means that if there was never a vaccination made for said diseases, there would be, as improbable as it sounds, there would be even less disease, because our bodies would become immune to the diseases themselves and the disease would not evolve.