title: J Donald Millar.
authors.forename: Alison
authors.initials: A
authors.lastname: Snyder
mesh_terms: D000349:Africa / Q000453:epidemiology; D002487:Centers for Disease Control and Prevention, U.S. / Q000266:history; D060740:Disease Eradication / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D012899:Smallpox / Q000266:history* / Q000517:prevention & control; D014481:United States