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Equine veterinary journal2001; 33(4); 403-409; doi: 10.2746/042516401776249534

A prospective study of the roles of clostridium difficile and enterotoxigenic Clostridium perfringens in equine diarrhoea.

Abstract: Faecal samples from adult horses and from foals with diarrhoea or with normal faeces were evaluated for the presence of Clostridium difficile, C. difficile toxins, C. perfringens enterotoxin (CPE) and C. perfringens spore counts. Clostridium difficile was isolated from 7/55 horses (12.7%) and 11/31 foals (35.5%) with colitis, but from 1/255 normal adults (0.4%) and 0/47 normal foals (P<0.001). Clostridium difficile toxins A and/or B were detected in 12/55 diarrhoeic adults (21.8%) and 5/30 diarrhoeic foals (16.7%) but in only 1/83 adults (1.2%) and 0/21 foals with normal faeces (P<0.001 and P<0.05, respectively). Clostridium perfringens enterotoxin was detected in 9/47 diarrhoeic adults (19%) and 8/28 diarrhoeic foals (28.6%), but was not detected in 47 adult horses (P<0.002) or 4 foals (P = 0.22) with normal faeces. The positive predictive value of isolation of C. perfringens with respect to the presence of CPE was only 60% in adult horses and 64% in foals. There was no association between total C. perfringens spore count and CPE in the faeces. The overall mortality rate from colitis was 22% for adult horses and 18% for foals. Clostridium difficile toxin-positive adult horses with colitis were less likely to survive than C. difficile-negative horses with colitis (P = 0.03). This study provides further evidence that C. difficile and enterotoxigenic C. perfringens are associated with equine enterocolitis.
Publication Date: 2001-07-27 PubMed ID: 11469775DOI: 10.2746/042516401776249534Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

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The research article reports a study suggesting that Clostridium difficile and Clostridium perfringens are potential contributors to diarrhoea and colitis in horses and foals.

Research Methodology

  • The scientists conducted a thorough examination of faecal samples taken from both adult horses and foals. These samples were collected from individuals experiencing diarrhoea as well as those who displayed normal faecal output.
  • They specifically looked for the presence of Clostridium difficile (a bacterium causing stool abnormalities), C. difficile toxins, C. perfringens enterotoxin (a toxic substance produced by Clostridium perfringens), and counts of C. perfringens spore (an infectious and resilient form of the bacteria).

Key Findings

  • Clostridium difficile was found in a significant proportion of horses (12.7%) and foals (35.5%) with colitis, a condition characterized by inflammation of the colon causing diarrhoea. The bacterium was found in 0.4% of normal adults and was absent in faecal samples of normal foals.
  • A higher prevalence of C. difficile’s toxins A and B were detected in diarrhoeic adults (21.8%) and foals (16.7%) compared to adults (1.2%) and foals with normal stools.
  • Clostridium perfringens enterotoxin was discovered in a considerable number of adults (19%) and foals (28.6%) suffering from diarrhoea. In adults and foals producing normal faeces, the toxin was not detected.
  • The ability to predict the presence of C. perfringens based on the isolation of CPE in adult horses and foals was found to be 60% and 64% accurate, respectively.
  • No correlation was found between total Clostridium perfringens spore count and its toxin in the faecal matter.
  • The mortality rate from colitis was calculated to be 22% for adult horses and 18% for foals. Adults horses with colitis that tested positive for C. difficile toxin demonstrated lower survival rates compared to those testing negative.

Conclusion

  • Based on the outcomes of their investigation, the researchers conclude that both C. difficile and enterotoxigenic C. perfringens play a role in equine enterocolitis (a condition causing severe inflammation of the small intestine and colon in horses and foals).
  • The study advances our understanding of the bacterial cause of diarrhoea and colitis in horses, which may guide future therapeutic strategies to improve equine health.

Cite This Article

APA
Weese JS, Staempfli HR, Prescott JF. (2001). A prospective study of the roles of clostridium difficile and enterotoxigenic Clostridium perfringens in equine diarrhoea. Equine Vet J, 33(4), 403-409. https://doi.org/10.2746/042516401776249534

Publication

ISSN: 0425-1644
NlmUniqueID: 0173320
Country: United States
Language: English
Volume: 33
Issue: 4
Pages: 403-409

Researcher Affiliations

Weese, J S
  • Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Canada.
Staempfli, H R
    Prescott, J F

      MeSH Terms

      • Animals
      • Anti-Bacterial Agents / pharmacology
      • Bacterial Toxins / immunology
      • Bacterial Toxins / isolation & purification
      • Clostridioides difficile / drug effects
      • Clostridioides difficile / isolation & purification
      • Clostridium Infections / diagnosis
      • Clostridium Infections / epidemiology
      • Clostridium Infections / veterinary
      • Clostridium perfringens / drug effects
      • Clostridium perfringens / isolation & purification
      • Enterocolitis / epidemiology
      • Enterocolitis / microbiology
      • Enterocolitis / veterinary
      • Enzyme-Linked Immunosorbent Assay / veterinary
      • Horse Diseases / diagnosis
      • Horse Diseases / epidemiology
      • Horse Diseases / microbiology
      • Horses
      • Microbial Sensitivity Tests
      • Ontario / epidemiology
      • Predictive Value of Tests
      • Prevalence
      • Prospective Studies

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