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Clostridium difficile-associated diarrhoea.

B Elliott1, B J Chang, C L Golledge

  • 1Microbiology and Immunology, The University of Western Australia, Perth, Western Australia, Australia.

Internal Medicine Journal
|July 21, 2007
PubMed
Summary
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Clostridium difficile causes hospital-acquired diarrhea. Fluoroquinolone resistance is emerging in hypervirulent strains, with binary toxin

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Epidemiology

Background:

  • Clostridium difficile is a major cause of nosocomial diarrhea.
  • Toxin A and Toxin B are primary C. difficile virulence factors.
  • Binary toxin's role in pathogenicity is currently unknown.

Purpose of the Study:

  • To review the current knowledge on Clostridium difficile as a cause of diarrheal illness.
  • To discuss the emergence of fluoroquinolone-resistant C. difficile strains.
  • To highlight the potential role of binary toxin.

Main Methods:

  • Literature review of C. difficile research.
  • Analysis of epidemiological data on C. difficile infections.
  • Review of molecular mechanisms of C. difficile virulence.

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Main Results:

  • Clostridium difficile is a significant cause of hospital-acquired diarrhea.
  • Fluoroquinolone use is linked to the emergence of hypervirulent, resistant strains.
  • Binary toxin, an adenosine-diphosphate ribosyltransferase, is produced by some strains, but its pathogenic role requires further investigation.

Conclusions:

  • Clostridium difficile remains a critical healthcare-associated pathogen.
  • Antimicrobial stewardship is essential to combat resistant strains.
  • Further research is needed to understand the impact of binary toxin on C. difficile infections.