Trichinella nativa is a nematode worm, one of the species of the genus Trichinella, found in arctic and subarctic regions.
| Trichinella nativa | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Nematoda |
| Class: | Enoplea |
| Order: | Trichocephalida |
| Family: | Trichinellidae |
| Genus: | Trichinella |
| Species: | T. nativa
|
| Binomial name | |
| Trichinella nativa Britov & Boev, 1972
| |
Biology
editIt is highly pathogenic and has a high resistance to freezing. It is encapsulated, and infects a wide variety of mammals and birds. Its lifecycle and pathogenesis are similar to Trichinella spiralis; T. nativa also can cause trichinosis. In Northern Europe T. nativa is a species commonly found in omnivores and carnivores such as wild boars, foxes, raccoon dogs and bears.[1] [2]
This nematode infects the muscles of mammals such as the Arctic fox and the polar bear. To complete its lifecycle, the flesh of its host must be eaten by some other mammal. In the Arctic, the corpses of animals that die may get frozen and later be consumed by scavengers. This worm remains viable even after being frozen at −18 °C (0 °F) for four years.[3]
References
edit- ^ Kärssin, A; Häkkinen, L; Vilem, A; Jokelainen, P; Lassen, B (2021). "Trichinella spp. In wild boars (sus scrofa), brown bears (ursus arctos), eurasian lynxes (lynx lynx) and badgers (meles meles) in estonia, 2007–2014". Animals. 11 (1): 183. doi:10.3390/ani11010183. PMC 7830479. PMID 33466833.
- ^ Kärssin, A; Häkkinen, L; Niin, E; Peik, K; Vilem, A; Jokelainen, P; Lassen, B (2017). "Trichinella spp. biomass has increased in raccoon dogs (Nyctereutes procyonoides) and red foxes (Vulpes vulpes) in Estonia". Parasit Vectors. 10 (1): 609. doi:10.1186/s13071-017-2571-0. PMC 5732378. PMID 29246168.
- ^ Leung, Tommy (2013-11-05). "The parasite a cricket's nightmares are made of". The Conversation. Retrieved 2015-05-11.
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