Legionnaires' disease on the rise in the United States.
D002487:Centers for Disease Control and Prevention, U.S.; D006801:Humans; D007875:Legionella / Q000472:pathogenicity; D007877:Legionnaires' Disease / Q000453:epidemiology* / Q000209:etiology / Q000382:microbiology; D014481:United States / Q000453:epidemiology; D014871:Water Microbiology