Smallpox 1718. In 1721, Cotton Mather and colleagues provoked controversy in Boston by inoculating hundreds. In 1796, Edward Jenner, a doctor in Berkeley, Gloucestershire, rural England, discovered that immunity to smallpox could be produced by inoculating a person with material from a cowpox lesion. Cowpox is a poxvirus in the same family as variola. Jenner called the material used for inoculation vaccine, from the root word "vacca", which is Latin for cow. The procedure was much safer than variolation, and did not involve a risk of smallpox transmission. Vaccination to prevent smallpox was soon practiced all over the world. During the
Smallpox vaccine in Koltsovo, Russia. These states report that their repositories are for possible antibioweaponry research and insurance if some obscure reservoir of natural smallpox is discovered in the future. The word "vaccine" is derived from "Variolae vaccinae" (i.e. smallpox of the cow), the term devised by Jenner to denote cowpox and used in the long title of his "An enquiry into the causes and effects of Variolae vaccinae, known by the name of cow pox". Vaccination, the term which soon replaced "cowpox inoculation" and "vaccine inoculation", was first used in print by Jenner's friend, Richard Dunning in 1800. Initially, the terms