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 line for Nordstrom. The Jenner sisters previewed "The Kendall & Kylie Collection" with PacSun on November 15, 2012; the collection launched in February 2013. On February 3, 2015, the Jenner sisters confirmed "Kendall + Kylie" collaboration with Topshop, which they unveiled in November 2015 at the Chadstone Shopping Centre in Melbourne, Australia. The collection launched in New York on February 8, 2016. On April 27, 2016, the Jenner sisters previewed a summer swimwear collection. Beginning 2015, Jenner featured in a series of commercial ads for various products including Jenner's signature Pure Color Envy Matte Sculpting Lipstick. Jenner has also promoted