![Jenner's vaccination hut](https://marvel-b1-cdn.bc0a.com/f00000000290195/www.utmb.edu/images/librariesprovider170/clinical-trials/previous-studies/jennerhutweb.jpg?sfvrsn=527d7357_0)
Jenner Hut or Temple of Vaccinia: One of the first vaccine clinical trials occurred in May, 1796 when Edward Jenner, an English country doctor, vaccinated an 8 year old boy named James Phipps with fluid from a cowpox blister hoping to protect him from smallpox. It worked!