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Acta veterinaria Scandinavica2019; 61(1); 12; doi: 10.1186/s13028-019-0447-3

Lawsonia intracellularis associated equine proliferative enteropathy in Danish weanling foals.

Abstract: Lawsonia intracellularis, an obligate intracellular bacterium, causes equine proliferative enteropathy, mainly in horses around weaning. This disease is rarely reported in the Scandinavian countries. Results: Five cases of equine proliferative enteropathy were diagnosed between 2008-2016 at the University of Copenhagen Large Animal Teaching Hospital. Cases were Danish Warmbloods and a Friesian horse, aged 6-7 months, presenting with typical clinical signs of lethargy, poor body condition, pyrexia and diarrhea. Clinical pathology was consistent with previous reports of severe hypoalbuminemia and leukocytosis. Diagnosis was confirmed by fecal polymerase chain reaction, serum immunomonolayer peroxidase assay and/or immunofluorescence and fluorescence in situ hybridization performed on formalin-fixed ileum samples. Concurrent intestinal parasitism was present in all five cases. Treatment consisted of antimicrobial therapy, anti-inflammatories, intravenous crystalloids and plasma. Three foals were euthanised due to deterioration and poor response to treatment, one with complications of septic arthritis and Strongylus vulgaris associated intestinal infarct. The other two foals survived and were reported by the owners to be healthy on long-term follow-up. Conclusions: Equine proliferative enteropathy is a disease to consider in young horses presenting with diarrhea and hypoproteinemia in Denmark.
Publication Date: 2019-03-08 PubMed ID: 30850006PubMed Central: PMC6407178DOI: 10.1186/s13028-019-0447-3Google Scholar: Lookup
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  • Journal Article

Summary

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The study examines the occurrence of equine proliferative enteropathy, a disease caused by the bacterium Lawsonia intracellularis, in weanling foals in Denmark. The researchers document five cases of this disease over eight years, outline the treatment methods used, and track the long-term health of the affected horses.

Case Study Parameters

  • The study was carried out at the University of Copenhagen Large Animal Teaching Hospital over the course of eight years, between 2008 and 2016.
  • Five cases of equine proliferative enteropathy were identified. The affected horses were 6-7 month old Danish Warmbloods and a Friesian horse. These foals displayed symptoms such as lethargy, poor body condition, fever, and diarrhea.

Diagnostic Methods

  • The researchers confirmed the diagnosis through fecal polymerase chain reaction, serum immunomonolayer peroxidase assay, and immunofluorescence and fluorescence in situ hybridization performed on formalin-fixed ileum samples.
  • Pathological conditions consistent with the disease, such as hypoalbuminemia (low levels of albumin in the blood) and leukocytosis (a high white blood cell count), were observed in the affected horses.
  • Notably, the presence of intestinal parasites was documented in all five cases.

Treatment and Outcome

  • The treatment regimen included antimicrobial therapy, anti-inflammatory medication, intravenous crystalloids, and plasma.
  • Three of the five affected foals had to be euthanised due to their deteriorating condition and lack of response to treatment. One of these suffered further complications from septic arthritis and intestinal infarct associated with Strongylus vulgaris, a type of parasitic worm.
  • The remaining two foals improved post-treatment and were reported by their owners to be healthy during long-term follow-up.

Conclusion

  • The study concludes that equine proliferative enteropathy should be considered as a potential diagnosis in young horses in Denmark presenting with symptoms of diarrhea and hypoproteinemia.

Cite This Article

APA
Bohlin AM, Olsen SN, Laursen SH, Öhman A, van Galen G. (2019). Lawsonia intracellularis associated equine proliferative enteropathy in Danish weanling foals. Acta Vet Scand, 61(1), 12. https://doi.org/10.1186/s13028-019-0447-3

Publication

ISSN: 1751-0147
NlmUniqueID: 0370400
Country: England
Language: English
Volume: 61
Issue: 1
Pages: 12

Researcher Affiliations

Bohlin, Anna Margareta
  • Evidensia Equine Specialist Hospital Helsingborg, Bergavägen 3, 254 66, Helsingborg, Sweden. anna.bohlin@evidensia.se.
Olsen, Susanne Nautrup
  • Large Animal Teaching Hospital, Department of Veterinary Clinical Sciences, University of Copenhagen, Agrovej 8, 2630, Taastrup, Denmark.
Laursen, Sigrid Hyldahl
  • Large Animal Teaching Hospital, Department of Veterinary Clinical Sciences, University of Copenhagen, Agrovej 8, 2630, Taastrup, Denmark.
Öhman, Anna
  • Evidensia Equine Specialist Hospital Helsingborg, Bergavägen 3, 254 66, Helsingborg, Sweden.
van Galen, Gaby
  • Large Animal Teaching Hospital, Department of Veterinary Clinical Sciences, University of Copenhagen, Agrovej 8, 2630, Taastrup, Denmark.
  • Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, 410 Werombi Road, Camden, NSW, Australia.

MeSH Terms

  • Animals
  • Denmark / epidemiology
  • Desulfovibrionaceae Infections / epidemiology
  • Desulfovibrionaceae Infections / pathology
  • Desulfovibrionaceae Infections / veterinary
  • Diarrhea / veterinary
  • Female
  • Horse Diseases / epidemiology
  • Horse Diseases / microbiology
  • Horse Diseases / pathology
  • Horses
  • Intestinal Diseases / epidemiology
  • Intestinal Diseases / microbiology
  • Intestinal Diseases / pathology
  • Intestinal Diseases / veterinary
  • Lawsonia Bacteria / isolation & purification
  • Male

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