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J P Ghanassia1, M F Avril1, F Vezinet2

  • 1Clinique des Maladies Infectieuses A (Pr. J. Modai). Hôpital Claude Bernard - 10, Avenue de la Porte d'Aubervilliers - 75019 Paris - France.

Medecine Et Maladies Infectieuses
|April 15, 2024
PubMed
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Diagnosing atypical pneumonia through antibody testing proved challenging, with low detection rates for specific pathogens like Mycoplasma pneumoniae and Chlamydia psittaci. The study questions the clinical utility of these extensive laboratory tests due to poor results, delays, and costs.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Immunology

Context:

  • Atypical pneumonia presents diagnostic challenges.
  • Early 1970s prospective study of hospitalized patients.
  • Focus on identifying specific etiological agents.

Purpose:

  • To assess the diagnostic yield of serological antibody detection for atypical pneumonia.
  • To identify common viral and bacterial causes of atypical pneumonia in hospitalized patients.

Summary:

  • Prospective survey of hospitalized patients with atypical pneumonia (1976-1978).
  • Serological testing for antibodies against influenza A/B, parainfluenza, adenoviruses, RSV, Mycoplasma pneumoniae, and Chlamydia psittaci.
  • A fourfold antibody rise detected in 23.7% of patients; specific agents identified in 50% of cases using high titers.
Keywords:
Atypical pneumoniaSerologic tests

Related Experiment Videos

  • Mycoplasma pneumoniae (43%), Influenza A (28.5%), and Chlamydia psittaci (14%) were most frequently identified.

    • Impact:

    • Highlights limitations of serological testing for rapid atypical pneumonia diagnosis.
    • Questions the cost-effectiveness and timeliness of extensive antibody testing for atypical pneumonia.
    • Suggests a need for more efficient diagnostic methods for atypical pneumonia.