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 Lou Retton succeeded Jenner in 1984. On November 22, 1977, Jenner went to San Francisco to refute charges filed by San Francisco district attorney Joseph Freitas that General Mills—the maker of Wheaties—had engaged in deceptive advertising in its campaign that featured Jenner. Jenner liked Wheaties and ate the breakfast cereal two or three times a week, which supported the advertising campaign's claims. Two days later, Freitas withdrew the suit, saying that it was "a case of overzealousness" on the part of his staff. When Jenner came out as a trans woman in 2015, General Mills stated that: "Bruce Jenner continues