title: Legionella pneumophila serotype 3. A newly recognized pathogen.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007875:Legionella / Q000145:classification; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000209:etiology*; D008875:Middle Aged; D012703:Serotyping