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
Caleb Jenner Caleb Jenner Caleb Joshua Jenner (9 December 1830 – 27 June 1890) was a politician in colonial Victoria (Australia), member of the Victorian Legislative Council. Jenner was born in Alfriston, Sussex, England, the son of Thomas Jenner and his wife Sarah, "née" Ralf. He came to Victoria in 1850, and engaged in commercial pursuits at Geelong. Jenner held the office of president of the first reform league, established for the purpose of protecting native Industries. Jenner represented the South Western Province in the Legislative Council for more than twenty years, being returned in March 1863 in opposition to Charles Griffith,