title: Ubiquitousness of Legionella pneumophila in the water supply of a hospital with endemic Legionnaires' disease.
mesh_terms: D003428:Cross Infection / Q000453:epidemiology*; D004197:Disease Reservoirs; D006746:Hospital Bed Capacity, 500 and over; D006801:Humans; D007875:Legionella / Q000302:isolation & purification*; D007877:Legionnaires' Disease / Q000453:epidemiology*; D010414:Pennsylvania; D012498:Sanitary Engineering; D014871:Water Microbiology; D014881:Water Supply