Louis Pasteur (1822–1895) 프랑스의 화학자, 미생물학자 Germ theory http://www.youtube.com/watch?v=KSLCkT2ttXQ Fermentation and yeast http://www.youtube.com/watch?v=9v1cCEuSJZg 저온살균 (Pasteurization) http://www.youtube.com/watch?v=dz2J2300I0A
Edward Jenner Smallpox vaccine (천연두 백신) http://www.youtube.com/watch?v=bchdLPV13zw http://www.youtube.com/watch?v=AY-AFOzYid0&feature=related http://www.youtube.com/watch?v=jJwGNPRmyTI&feature=related Immune system and vaccination http://www.youtube.com/watch?v=90hSVkaOG_w&feature=related http://www.youtube.com/watch?v=Ys_V6FcYD5I&feature=related http://www.youtube.com/watch?v=bzoXYvp7XGE&feature=related