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Article

Trichinella spp. in Wild Boars (Sus scrofa), Brown Bears (Ursus arctos), Eurasian Lynxes (Lynx lynx) and Badgers (Meles meles) in Estonia, 2007–2014

1
Estonian Veterinary and Food Laboratory, 51006 Tartu, Estonia
2
Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
3
Laboratory of Parasitology, Department of Bacteria, Parasites and Fungi, Infectious Disease Preparedness, Statens Serum Institut, 2300 Copenhagen, Denmark
4
Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
5
Research Group for Global Capacity Building, Division for Global Surveillance, National Food Institute, Technical University of Denmark, 2800 Copenhagen, Denmark
*
Author to whom correspondence should be addressed.
Animals 2021, 11(1), 183; https://doi.org/10.3390/ani11010183
Received: 7 December 2020 / Revised: 2 January 2021 / Accepted: 11 January 2021 / Published: 14 January 2021
(This article belongs to the Special Issue Parasites and Wildlife)
Trichinellosis is an important foodborne zoonosis. In Estonia, Trichinella infections are endemic in wild animals. This paper summarizes findings of Trichinella-parasites during an 8-year period in Estonia in selected host species: wild boars, brown bears, Eurasian lynxes, and badgers. The results highlight that testing wildlife hunted for human consumption for Trichinella is important, and that there is room for improvement in the proportion of hunted animals tested.
In this study, we summarize Trichinella findings from four wild, free-ranging host species from Estonia during 2007–2014. Trichinella spp. larvae were detected in 281 (0.9%, 95% confidence interval (CI) 0.8–1.0) of 30,566 wild boars (Sus scrofa), 63 (14.7%, 95% CI 11.6–18.3) of 429 brown bears (Ursus arctos), 59 (65.56%, 95% CI 55.3–74.8) of 90 Eurasian lynxes (Lynx lynx), and three (60.0%, 95% CI 18.2–92.7) of five badgers (Meles meles). All four European Trichinella species were detected: T. britovi in 0.7% of the wild boars, 7.2% of the brown bears, 45.6% of the lynxes, and 40.0% of the badgers; T. nativa in 0.1% of the wild boars, 5.8% of the brown bears, and 20.0% of the lynxes; T. pseudospiralis in 0.02% the wild boars; and T. spiralis in 0.03% of the wild boars and 4.4% of the lynxes. The results include the first description from Estonia of T. britovi in brown bear and badgers, T. pseudospiralis in wild boars, and T. spiralis in wild boars and lynxes. The results indicate high infection pressure in the sylvatic cycles across the years—illustrating continuous risk of spillover to domestic cycles and of transmission to humans. View Full-Text
Keywords: foodborne; game meat; Trichinella; wildlife; zoonosis foodborne; game meat; Trichinella; wildlife; zoonosis
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MDPI and ACS Style

Kärssin, A.; Häkkinen, L.; Vilem, A.; Jokelainen, P.; Lassen, B. Trichinella spp. in Wild Boars (Sus scrofa), Brown Bears (Ursus arctos), Eurasian Lynxes (Lynx lynx) and Badgers (Meles meles) in Estonia, 2007–2014. Animals 2021, 11, 183. https://doi.org/10.3390/ani11010183

AMA Style

Kärssin A, Häkkinen L, Vilem A, Jokelainen P, Lassen B. Trichinella spp. in Wild Boars (Sus scrofa), Brown Bears (Ursus arctos), Eurasian Lynxes (Lynx lynx) and Badgers (Meles meles) in Estonia, 2007–2014. Animals. 2021; 11(1):183. https://doi.org/10.3390/ani11010183

Chicago/Turabian Style

Kärssin, Age, Liidia Häkkinen, Annika Vilem, Pikka Jokelainen, and Brian Lassen. 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, no. 1: 183. https://doi.org/10.3390/ani11010183

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