title: Legionella--an environmental issue and concern.
authors.forename: William E
authors.initials: WE
authors.lastname: Pearson
mesh_terms: D003428:Cross Infection / Q000453:epidemiology* / Q000209:etiology; D004196:Disease Outbreaks; D004781:Environmental Exposure / Q000009:adverse effects*; D006761:Hospitals; D006801:Humans; D007591:Joint Commission on Accreditation of Healthcare Organizations; D007877:Legionnaires' Disease / Q000453:epidemiology* / Q000209:etiology; D015143:Philadelphia / Q000453:epidemiology; D014481:United States / Q000453:epidemiology