Trichinella nativa and Trichinella T6 in arctic foxes (Vulpes lagopus) from northern Canada

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DOI

https://doi.org/10.1016/j.ijppaw.2020.11.006

Langue de publication
Anglais
Date
2020-11-28
Type
Article
Auteur(s)
  • Owsiacki, Robin
  • Buhler, Kayla J.
  • Sharma, Rajnish
  • Branigan, Marsha
  • Fenton, Heather
  • Tomaselli, Matilde
  • Kafle, Pratap
  • Lobanov, Vladislav A.
  • Bouchard, Émilie
  • Jenkins, Emily
Éditeur
Elsevier B.V.

Résumé

Parasitic zoonotic nematodes of the genus Trichinella circulate in wildlife and domestic hosts worldwide through the ingestion of infected meat. Due to their role as scavengers and predators in terrestrial and marine arctic ecosystems, Arctic foxes (Vulpes lagopus) are ideal sentinels for the detection of Trichinella spp. In this study, we determined the prevalence, larval intensity, and species of Trichinella from 91 trapped Arctic foxes collected around the northern Canadian communities of Sachs Harbour (Ikaahuk) on Banks Island (n = 23), and Ulukhaktok and Cambridge Bay (Ikaluktutiak) on Victoria Island (n = 68). Using pepsin-HCl digestion, larvae of Trichinella spp. were recovered from the left forelimb muscle (flexor carpi ulnaris) in 19 of the 91 foxes (21% prevalence, 95% CI: 14–30%). For the first time in Arctic foxes in Canada, Trichinella species were identified using multiplex PCR that was followed up with PCR-RFLP to distinguish between T. nativa and T. chanchalensis. All infected foxes harbored T. nativa, and one fox was co-infected with Trichinella T6; the latter is a new host record. Age of the fox was significantly associated with Trichinella spp. infection and the odds of being infected were three times higher in foxes ≥2 years of age (p = 0.026), indicating cumulative exposure with age. While Arctic foxes are seldom harvested for human consumption, they serve as sentinel hosts of Trichinella spp., confirming the presence of the parasite in wildlife in the region.

Sujet

  • Maladie animale,
  • Nord canadien,
  • Arctique,
  • Parasite

Mots-clés

  • Trichinellosis and other foodborne zoonotic pathogens,
  • Trichinella,
  • Arctic Fox

Droits

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

Pagination

269-274

Évalué par les pairs

Yes

Identifiants

ISSN
2213-2244

Article

Titre de la revue
International Journal for Parasitology: Parasites and Wildlife
Volume de la revue
13
Date d'acceptation
2020-11-24
Date de soumission
2020-10-22

Référence(s)

Owsiacki, R., Buhler, K. J., Sharma, R., Branigan, M., Fenton, H., Tomaselli, M., Kafle, P., Lobanov, V. A., Bouchard, É., & Jenkins, E. (2020). Trichinella nativa and trichinella T6 in Arctic foxes (Vulpes lagopus) from northern Canada. International Journal for Parasitology: Parasites and Wildlife, 13, 269–274. https://doi.org/10.1016/j.ijppaw.2020.11.006

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