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Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
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[Corynebacterium pseudodiphtheriticum causing severe pneumonia in secondary immunoglobulin deficiency]

D Gompelmann1, J Kappes, C P Heussel

  • 1Pneumologie und Beatmungsmedizin, Thoraxklinik Heidelberg. daniela.gompelmann@thoraxklinik-heidelberg.de

Deutsche Medizinische Wochenschrift (1946)
|November 24, 2011
PubMed
Abstract

Insights

Corynebacterium pseudodiphtheriticum can cause pneumonia in immunocompromised patients, particularly those with immunoglobulin deficiency. Prompt diagnosis and targeted antibiotic therapy with immunoglobulin substitution lead to recovery.

Area of Science:

  • Medical Microbiology
  • Immunology

Context:

  • Rising incidence of immunocompromised patients.
  • Increasing clinical significance of Corynebacterium pseudodiphtheriticum infections.
  • Potential for severe infections including pneumonia, endocarditis, UTIs, and keratitis.

Purpose:

  • To highlight the role of Corynebacterium pseudodiphtheriticum as a pathogen in immunocompromised individuals.
  • To emphasize the association between immunoglobulin deficiency and pneumonia caused by this bacterium.
  • To advocate for timely consideration of Corynebacterium pseudodiphtheriticum in diagnosing pneumonia in susceptible populations.

Summary:

  • A 69-year-old male with chronic lymphocytic leukemia and immunoglobulin deficiency presented with pneumonia.
  • Corynebacterium pseudodiphtheriticum was identified as the causative agent.
  • Successful treatment involved targeted antibiotic therapy and immunoglobulin substitution, leading to full recovery.

Impact:

  • Informing clinicians about the potential of Corynebacterium pseudodiphtheriticum to cause pneumonia in immunocompromised hosts.
  • Guiding diagnostic and therapeutic strategies for pneumonia in patients with immunoglobulin deficiencies.
  • Improving patient outcomes through early recognition and appropriate management of rare bacterial infections.

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