Trichinella pseudospiralis in a wolverine (Gulo gulo) from the Canadian North

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creativework.keywords - en
Trichinellosis and other foodborne zoonotic pathogens
Trichinella
Wolverine
creativework.keywords - fr
Trichinellose et autres pathogènes zoonotiques d'origine alimentaire
Trichinella
Carcajou
dc.contributor.author
Sharma, Rajnish
Thompson, Peter
Elkin, Brett
Mulders, Robert
Branigan, Marsha
Pongracz, Jodie
Wagner, Brent
Scandrett, Brad
Hoberg, Eric
Rosenthal, Benjamin
Jenkins, Emily
dc.date.accepted
2019-06-12
dc.date.accessioned
2025-02-26T19:42:28Z
dc.date.available
2025-02-26T19:42:28Z
dc.date.issued
2019-06-13
dc.date.submitted
2019-03-29
dc.description.abstract - en
Species of Trichinella are a globally distributed assemblage of nematodes, often with distinct host ranges, which include people, domestic, and wild animals. Trichinella spp. are important in northern Canada, where dietary habits of people and methods of meat preparation (drying, smoking, fermenting as well as raw) increase the risk posed by these foodborne zoonotic parasites. Outbreaks in the arctic and subarctic regions of Canada and the United States are generally attributed to T. nativa (T2) or the T6 genotype, when genetic characterization is performed. We report the discovery of Trichinella pseudospiralis (T4), a non-encapsulated species, in a wolverine (Gulo gulo) from the Northwest Territories of Canada. This parasite has been previously reported elsewhere from both mammals and carnivorous birds, but our findings represent new host and geographic records for T. pseudospiralis. Multiplex PCR and sequencing of fragments of Cytochrome Oxidase Subunit I (COI) and D3 rDNA confirmed the identification. Phylogenetically, Canadian isolates linked with each other and others derived from Palearctic or Neotropical regions, but not elsewhere in the Nearctic (continental USA). We suggest that migratory birds might have played a role in the dispersal of this pathogen 1000's of km to northwestern Canada. Wolverines are not typically consumed by humans, and thus should not pose a direct food safety risk for trichinellosis. However, the current finding suggests that they may serve as an indicator of a broader distribution for T. pseudospiralis. Along with infection risk already recognized for T. nativa and Trichinella T6, our observations emphasize the need for further studies using molecular diagnostics and alternative methods to clarify if this is a solitary case, or if T. pseudospiralis and other freeze susceptible species of Trichinella (such as T. spiralis) circulate more broadly in wildlife in Canada, and elsewhere.
dc.identifier.citation
Sharma, R., Thompson, P., Elkin, B., Mulders, R., Branigan, M., Pongracz, J., Wagner, B., Scandrett, B., Hoberg, E., Rosenthal, B., & Jenkins, E. (2019). Trichinella pseudospiralis in a wolverine (Gulo gulo) from the Canadian north. International Journal for Parasitology: Parasites and Wildlife, 9, 274–280. https://doi.org/10.1016/j.ijppaw.2019.06.005
dc.identifier.doi
https://doi.org/10.1016/j.ijppaw.2019.06.005
dc.identifier.issn
2213-2244
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/3471
dc.language.iso
en
dc.publisher - en
Elsevier B.V.
dc.rights - en
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.rights - fr
Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
dc.rights.uri - en
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
dc.subject - en
Health and safety
Northern Canada
Animal diseases
dc.subject - fr
Santé et sécurité
Nord canadien
Maladie animale
dc.subject.en - en
Health and safety
Northern Canada
Animal diseases
dc.subject.fr - fr
Santé et sécurité
Nord canadien
Maladie animale
dc.title - en
Trichinella pseudospiralis in a wolverine (Gulo gulo) from the Canadian North
dc.type - en
Article
dc.type - fr
Article
local.article.journaltitle - en
International Journal for Parasitology: Parasites and Wildlife
local.article.journalvolume
9
local.pagination
274-280
local.peerreview - en
Yes
local.peerreview - fr
Oui
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