Aortic valve endocarditis associated with Legionella infection after Mycoplasma pneumonia

Br Heart J. 1987 Sep;58(3):293-5. doi: 10.1136/hrt.58.3.293.


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.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Antibodies, Bacterial / analysis
  • Aortic Valve*
  • Endocarditis, Bacterial / microbiology*
  • Female
  • Heart Valve Diseases / microbiology
  • Humans
  • Legionella / immunology
  • Legionellosis / diagnosis*
  • Mycoplasma pneumoniae / immunology
  • Pneumonia, Mycoplasma / complications*


  • Antibodies, Bacterial