title: How common is Legionnaires' disease?
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis; D006801:Humans; D007875:Legionella / Q000145:classification / Q000276:immunology; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000453:epidemiology*; D009656:North America; D012606:Scotland
chemical_list: D000907:Antibodies, Bacterial