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
Robert Francis Jenner of 18. On 10 August 1824 Jenner married Elizabeth Lascelles (died 29 September 1850), eldest daughter of Sir Herbert Jenner-Fust, Dean of Arches. She was his double first cousin. They had ten sons and five daughters. One of the daughters, Emma, wrote of her mother: "She always thought the year wasted if there was not a new baby born." Jenner resided in Wenvoe Castle, and was a Justice of the Peace and Deputy Lieutenant for Glamorgan. In 1828 he was appointed High Sheriff of Glamorgan. Jenner was patron of St Mary's Church in the village of Jenner. Robert Francis Jenner