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Related Experiment Videos

Placentitis associated with leishmaniasis in a dog.

J P Dubey1, Alexa C Rosypal, Virginia Pierce

  • 1Animal Parasitic Diseases Laboratory, Animal and Natural Resources Institute, Agricultural Research Service, USDA, Bldg 1001, Beltsville, MD 20705, USA.

Journal of the American Veterinary Medical Association
|November 4, 2005
PubMed
Summary

A Coonhound experienced fetal abortion due to Leishmania infection, confirmed by histological examination of the placenta. This highlights the impact of Leishmania spp. on canine pregnancy outcomes.

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Area of Science:

  • Veterinary Pathology
  • Parasitology
  • Reproductive Biology

Background:

  • Canine reproduction is susceptible to various infectious agents.
  • Leishmania species are known pathogens affecting multiple organ systems in dogs.
  • Placentitis can lead to adverse pregnancy outcomes, including fetal loss.

Observation:

  • A 1.5-year-old Coonhound presented with the abortion of seven fetuses.
  • Histological examination of the placenta revealed significant inflammation, necrosis, and leukocyte infiltration.
  • Numerous Leishmania spp. amastigotes were identified within the placental trophoblasts.

Findings:

  • The diagnosis of placentitis was confirmed using Leishmania-specific immunohistochemical staining.
  • Protozoa were not detected in the examined fetal tissues.

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  • Serological tests, including an indirect fluorescent antibody test (1:100 titer) and a recombinant K39 immunoassay, were positive for Leishmania.

    • Implications:

    • This case demonstrates Leishmania infection as a cause of canine abortion.
    • Early diagnosis and understanding of Leishmania's impact on reproduction are crucial for canine health management.
    • Further research into Leishmania's reproductive pathogenicity in canids is warranted.