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
Kendall Jenner sister and maternal half-siblings in Calabasas, an upscale suburb west of Los Angeles. Jenner attended Sierra Canyon School before switching to homeschooling in order to pursue modeling. She graduated in 2014. Jenner began modeling at age 14 when Wilhelmina Models signed her on July 12, 2009. Cinematographer Nick Saglimbeni directed the photoshoot for Jenner's Wilhelmina portfolio. Jenner's first modeling job was the "Rocker Babes with a Twist" campaign for Forever 21 in December 2009 and January 2010. Jenner featured in a "Teen Vogue" Snapshot on April 19, 2010. In September 2011, Jenner walked for Sherri Hill during Mercedes-Benz Fashion Week.