Chlamydia pneumoniae infection

Last reviewed: 2 Sep 2022
Last updated: 28 Apr 2020

Summary

Definition

History and exam

Other diagnostic factors

  • overcrowding (risk factor)
  • illness in other family members
  • cough
  • fever
  • headache
  • rales
  • wheezes on chest auscultation
  • tachypnea
  • pleuritic chest pain
  • dullness to percussion/reduced air entry/decreased tactile fremitus
Other diagnostic factors

Risk factors

  • overcrowding
More risk factors

Diagnostic investigations

1st investigations to order

  • chest x-ray
  • WBC count with differential
More 1st investigations to order

Investigations to consider

  • C pneumoniae culture of nasopharynx, sputum, or pleural fluid
  • C pneumoniae antibody
  • Nucleic acid amplification tests for C pneumoniae
More investigations to consider

Treatment algorithm

ACUTE

adults

children

Contributors

Authors

Margaret R. Hammerschlag, MD

Professor of Pediatrics and Medicine

Director

Division of Pediatric Infectious Diseases

SUNY Downstate Medical Center

Brooklyn

NY

Disclosures

MRH is an author of a number of references cited in this monograph.

Peer reviewers

Yuji Oba, MD, FCCP

Associate Professor of Clinical Medicine

Division of Pulmonary/Critical Care Medicine

School of Medicine

University of Missouri-Columbia

Columbia

MO

Disclosures

YO declares that he has no competing interests.

Sebastian Johnston, MB, BS, PhD, FRCP

Professor of Respiratory Medicine

Honorary Consultant Physician in Allergy and Respiratory Medicine

Department of Respiratory Medicine

Imperial College School of Medicine

London

UK

Disclosures

SJ has received fees for speaking, and research and consultant fees from Sanofi Pasteur, Aventis, GlaxoSmithKline, AstroZeneca, Merck, Pfizer, Centocor, and Synergen.

  • Chlamydia pneumoniae infection images
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