Dr. Edward Jenner was a man who has saved millions of lives due to his discovery of cowpox as the most effective treatment for the killer disease of smallpox. Born in 1749, he was orphaned at the age of five years, his parents both dying within two months of each other in 1754. He was sent away to boarding school at the age of eight years, and whilst there was subjected to be inoculated with a small amount of smallpox which was the standard treatment...