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,
Kendall Jenner Kendall Jenner Kendall Nicole Jenner (born November 3, 1995) is an American model and television personality. Originally appearing in the E! reality television show "Keeping Up with the Kardashians", Jenner is now also a model in a movement dubbed "the Instagirl era" by "Vogue" magazine, or "Social Media Modeling" by "Harper's Bazaar", where models are chosen for their online presence and social media following. After working in commercial print ad campaigns and photoshoots, Jenner had breakout seasons in 2014 and 2015, walking the runways for high fashion designers during the New York, Milan, and Paris Fashion Weeks. Jenner has done