Oh my goodness @cyprianj, there is an endless supply of history and bad practice for profit. I have concerns about vaccines doing any good. I think proper nutrition, exercise, clean water, proper waste systems, clean living conditions and safe working conditions have led to the disappearance of infectious diseases in the West.

However, we have a growing population of homeless people here in the United States and we are seeing a rise in infectious disease like in the past before the West cleaned up its act.