Are you sure? You're getting this information from mainstream media manipulated by Bill Gates and $$$ and vaccine lobbies. For all we know, people never died from smallpox. I suggest all those against vaccines infect themselves with tiny / non-active doses of these diseases to show us how you develop immune system without using stupid vaccines!small pox was one of the most contagious and most deadliest disease that has plagued humans for centuries and if it wasn't for a vaccine we wouldn't have eradicated it. It's case fatality rate was between 30-50% and killed around 300 million people in the 20th century.