Smallpox vaccine get to a populated place. The world health system is completely unprepared for this." In the United Kingdom, controversy occurred regarding the company which had been contracted to supply the vaccine. This was because of the political connections of its owner, Paul Drayson, and questions over the choice of vaccine strain. The strain was different from that used in the United States. Plans for mass vaccinations in the United States stalled as the necessity of the inoculation came into question. Smallpox vaccine Smallpox vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed
Smallpox scientists performed the research to help development of new vaccines as well as trace smallpox's history, the possibility of the techniques being used for nefarious purposes was immediately recognized, leading to new regulation questions. The British used smallpox as a biological warfare agent at the Siege of Fort Pitt during the French and Indian Wars (1754–1763) against France and its Native American allies. The actual use of smallpox had official sanction. British officers, including the top British commanding generals, ordered, sanctioned, paid for and conducted the use of smallpox against the Native Americans. As described by historians, "there is no