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
Caitlyn Jenner restrict the legal definition of a person's gender to that assigned at birth. Prior to her public gender transition, Jenner had been married three times, first to Chrystie Scott ( Crownover) from 1972 to 1981. They have two children, son Burton "Burt" Jenner and daughter Cassandra "Casey" Marino ( Jenner). Jenner and Scott's divorce was finalized the first week of January 1981. On January 5, 1981, Jenner married actress Linda Thompson in Hawaii. They have two sons together, Brandon Jenner and Sam Brody Jenner (known as Brody). By February 1986, Jenner and Thompson had separated and subsequently divorced. Their sons