Incidence of community-acquired pneumonia caused byChlamydia pneumoniae in Italian patients

  • F. Blasi
  • R. Cosentini
  • D. Legnani
  • F. Denti
  • L. Allegra


The incidence ofChlamydia pneumoniae as a cause of community-acquired pneumonia was evaluated in a one-year prospective study in 108 patients with community-acquired pneumonia. The bacteriological diagnosis was based on culture of sputum or bronchial aspirate and examination of acute and convalescent phase sera forMycoplasma pneumoniae, Legionella pneumophila andChlamydia pneumoniae. A definitive microbiological diagnosis was obtained in 58 (54 %) patients.Chlamydia pneumoniae was the causative agent in 14 patients (13 %) on the basis of positive serological tests; in 10 of the 14 patientsChlamydia pneumoniae was also detected by means of an indirect immunofluorescence test using pharyngeal swab specimens. In conclusion,Chlamydia pneumoniae seems to be a common etiological agent of community-acquired pneumonia, as increasingly reported in the last six to seven years.


Causative Agent Serological Test Etiological Agent Indirect Immunofluorescence Italian Patient 
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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1993

Authors and Affiliations

  • F. Blasi
    • 1
  • R. Cosentini
    • 1
  • D. Legnani
    • 1
  • F. Denti
    • 1
  • L. Allegra
    • 1
  1. 1.Istituto di Tisiologia e Malattie dell'Apparato RespiratorioUniversità degli Studi di Milano, Ospedale Maggiore di MilanoMilanItaly

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