Comment Re:SHOCKED AT A "MATH PROFESSOR" (Score 1) 278
...with controlled inoculations with skin pricks rather than waiting for people to be infected via their eyes or lungs. Inoculations reduced smallpox mortality from 30% to about 1% seven centuries before a vaccine was developed.
I believe that was skin pricks with stuff from a cowpox sore, not from a smallpox sore.