Legionnaires' Disease.
D003428:Cross Infection / Q000635:transmission*; D006761:Hospitals; D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000635:transmission*; D010356:Patient Isolation; D013030:Spain; D014481:United States; D014871:Water Microbiology