Edward Jenner full-blown infection. Later, he injected Phipps with variolous material, the routine method of immunization at that time. No disease followed. The boy was later challenged with variolous material and again showed no sign of infection. Donald Hopkins has written, "Jenner's unique contribution was not that he inoculated a few persons with cowpox, but that he then proved [by subsequent challenges] that they were immune to smallpox. Moreover, he demonstrated that the protective cowpox pus could be effectively inoculated from person to person, not just directly from cattle. Jenner successfully tested his hypothesis on 23 additional subjects. Jenner continued his research
Statue of Edward Jenner, London to Trafalgar Square began. Statue of Edward Jenner, London A statue of Edward Jenner, the physician, scientist and pioneer of the world's first vaccine, is located in Kensington Gardens in London. A work of the sculptor William Calder Marshall, the bronze was originally unveiled by Albert, Prince Consort in Trafalgar Square on 17 May 1858, before being moved to its present location in 1862. It is a Grade II listed building. The statue depicts Jenner in a seated position with one hand holding papers and is upon a plinth of Portland stone with Jenner's surname inscribed on a front panel