The smallpox story: from variolation to victory.
D001208:Asia; D001315:Australia; D005060:Europe; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D008512:Medicine in the Arts; D012899:Smallpox / Q000266:history*; D012900:Smallpox Vaccine / Q000266:history*; D014481:United States
D012900:Smallpox Vaccine