title: Formalised yolk sac antigen in early diagnosis of Legionnaires' disease caused by Legionella pneumophila serogroup 1.
mesh_terms: D000208:Acute Disease; D000907:Antibodies, Bacterial / Q000032:analysis*; D000942:Antigens, Bacterial / Q000276:immunology; D000939:Epitopes; D006801:Humans; D007875:Legionella / Q000276:immunology*; D007877:Legionnaires' Disease / Q000175:diagnosis*; D015017:Yolk Sac
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D000939:Epitopes