title: Progress in the battle against nosocomial legionnaires' disease: shedding light on shades of gray.
authors.forename: Donald E
authors.initials: DE
authors.lastname: Craven
mesh_terms: D000389:Air Conditioning; D002487:Centers for Disease Control and Prevention, U.S.; D003428:Cross Infection / Q000382:microbiology / Q000517:prevention & control*; D004203:Disinfection / Q000379:methods*; D006801:Humans; D007877:Legionnaires' Disease / Q000209:etiology / Q000517:prevention & control* / Q000635:transmission; D008284:Maintenance and Engineering, Hospital / Q000379:methods*; D014481:United States; D014871:Water Microbiology; D018508:Water Purification / Q000379:methods* / Q000592:standards