title: Aortic valve endocarditis associated with Legionella infection after Mycoplasma pneumonia.
abstract: A 38 year old woman with diabetes mellitus and bronchial asthma was admitted to hospital with pneumonia caused by Mycoplasma pneumoniae; she recovered promptly on erythromycin treatment. Six weeks later she presented with aortic valve endocarditis without concurrent lung disease. A concurrent increase in titres of antibody to Legionella bozemanii, L longbeachae, and L jordanis indicated a Legionella infection. Legionella infection should be considered, even in the absence of pneumonia, in cases of endocarditis where no other cause can be detected.
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis; D001021:Aortic Valve; D004697:Endocarditis, Bacterial / Q000382:microbiology*; D005260:Female; D006349:Heart Valve Diseases / Q000382:microbiology; D006801:Humans; D007875:Legionella / Q000276:immunology; D007876:Legionellosis / Q000175:diagnosis*; D009177:Mycoplasma pneumoniae / Q000276:immunology; D011019:Pneumonia, Mycoplasma / Q000150:complications*
chemical_list: D000907:Antibodies, Bacterial