[1/10 History of hygiene].
D001207:Asepsis / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D006920:Hygiene / Q000266:history*; D017053:Infection Control / Q000266:history