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Sylvatic trichinosis in Canada.

H J Smith1, K E Snowdon

  • 1Canada Agriculture, Health of Animals Laboratory, Sackville, New Brunswick.

Canadian Journal of Veterinary Research = Revue Canadienne De Recherche Veterinaire
|October 1, 1988
PubMed
Summary
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Sylvatic trichinosis was found in numerous mammal species across Canada, from the Arctic to the Rocky Mountains. This study documents the widespread distribution of this parasitic infection in wildlife populations.

Area of Science:

  • Veterinary Parasitology
  • Wildlife Epidemiology
  • Zoonotic Diseases

Background:

  • Sylvatic trichinosis is a parasitic disease affecting wildlife.
  • Understanding its distribution is crucial for wildlife health and public safety.
  • Previous data on Canadian wildlife infections were limited.

Purpose of the Study:

  • To determine the prevalence and geographic distribution of sylvatic trichinosis in Canadian wildlife.
  • To identify mammal species infected with Trichinella in various Canadian regions.

Main Methods:

  • Pepsin digestion technique was used to analyze muscle tissue samples.
  • Musculature from 2253 animals was examined for Trichinella larvae.
  • Sampling covered diverse regions from the eastern to western Arctic and Rocky Mountains.

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Main Results:

  • Sylvatic trichinosis was confirmed in multiple mammal species across a wide geographic range.
  • Infections were detected in Arctic fox, red fox, wolf, raccoon, coyote, lynx, bobcat, and dog.
  • The parasite's presence extended from the Arctic regions into the Rocky Mountain and Foothills areas.

Conclusions:

  • Sylvatic trichinosis is endemic in Canadian wildlife, with a broad geographic distribution.
  • Various carnivore and omnivore species act as hosts for the parasite.
  • Continued surveillance is necessary to monitor the spread and impact of trichinosis in wildlife.