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
Frank Jenner were willing to engage in conversation with him, he would invite them either to his home or to a local church. The question became known as "the Frank Jenner question". Jenner was most active in evangelism during World War II. On Saturday nights during the war, Jenner would invite groups of sailors to his home for a service consisting of some hymns and a short sermon. One of the people to whom Jenner posed his question was Noel Stanton, a man from Bedfordshire, England, who was serving in Sydney with the Royal Navy at the time. Stanton became preoccupied with