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The other causes of 'atypical' pneumonia

J S Tan1

  • 1Department of Internal Medicine and Infectious Disease Section, Northeastern Ohio Universities College of Medicine, Akron, OH 44304, USA.

Current Opinion in Infectious Diseases
|October 13, 2006
PubMed

Insights

Atypical pneumonia can be caused by more than just the usual suspects like Mycoplasma. Various other microorganisms, including viruses, can lead to atypical pneumonia in diverse patient groups.

Area of Science:

  • Infectious Diseases
  • Pulmonary Medicine
  • Microbiology

Background:

  • Atypical pneumonia is commonly attributed to Mycoplasma, Chlamydia, and Legionella.
  • However, a broader range of microorganisms can cause similar clinical presentations.
  • Respiratory infections are a significant global health concern.

Purpose of the Study:

  • To highlight the diverse etiologies of atypical pneumonia beyond the typical bacterial agents.
  • To emphasize the role of respiratory viruses in atypical pneumonia presentations.
  • To inform clinicians about the spectrum of pathogens causing atypical pneumonia.

Main Methods:

  • Literature review of atypical pneumonia cases and outbreaks.
  • Analysis of reported etiologic agents in atypical pneumonia.
  • Categorization of causative microorganisms.

Main Results:

  • Mycoplasma, Chlamydia, and Legionella are frequent causes of atypical pneumonia.
  • Respiratory viruses, bacteria, fungi, parasites, and mycobacteria can also manifest as atypical pneumonia.
  • Zoonotic infections are potential causes in endemic regions.

Conclusions:

  • The differential diagnosis for atypical pneumonia should extend beyond Mycoplasma, Chlamydia, and Legionella.
  • Respiratory viruses play a notable role in both immunocompetent and immunosuppressed individuals.
  • Comprehensive etiological investigation is crucial for effective management of atypical pneumonia.

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