Cowpox children. In 1796, British medical practitioner Edward Jenner tested the theory that cowpox could protect someone from being infected by smallpox. Although cowpox originates on the udder of cows, Jenner took his sample from a milkmaid, Sarah Nelmes. Jenner extracted the pus of one of the lesions formed by cowpox on Nelmes to another individual who never had smallpox, James Phipps. He eventually developed a scab and fever that was manageable. Approximately six weeks later, Jenner then introduced an active sample of the smallpox virus into Phipps to test the theory. After being observed for an extended amount of time,
Herbert Jenner Herbert Jenner Herbert Jenner (born 23 February 1806 at Mayfair, London; died 30 July 1904 at Falfield, Gloucestershire) was an English barrister. As an amateur cricketer he played first-class cricket from 1825 to 1838. He changed his name to Herbert Jenner-Fust in 1864. Herbert Jenner was the eldest son of the judge Herbert Jenner-Fust, Dean of the Arches. He was educated at Eton, where he was first noted as a schoolboy cricketer playing against Harrow School in 1822, and Trinity Hall, Cambridge. In 1827, he captained Cambridge University in the inaugural university match played at Lord's Cricket Ground. Jenner entered