title: Isolation of a new serotype of legionnaires' disease bacterium.
abstract: A new serotype of the legionnaires' disease bacterium has been isolated. The strain appears to be identical with the Philadelphia strain except for the cell-wall antigens as tested by a direct fluorescent antibody technique. Demonstration of a new serotype brings into question the diagnostic specificity of currently used reference strains.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification; D046508:Culture Techniques / Q000379:methods; D005455:Fluorescent Antibody Technique; D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D012703:Serotyping / Q000379:methods