Water-borne diseases; an historical review.
D002170:Canada; D002713:Chlorine / Q000627:therapeutic use; D002771:Cholera / Q000209:etiology; D003141:Communicable Diseases / Q000209:etiology* / Q000266:history; D004782:Environmental Health / Q000266:history*; D005060:Europe; D006506:Hepatitis A / Q000209:etiology; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D014435:Typhoid Fever / Q000209:etiology; D014481:United States; D014777:Virus Diseases / Q000209:etiology; D014876:Water Pollution / Q000517:prevention & control*
D002713:Chlorine