Trichinellosis of Wild Animals in the Territory of the Kirov Region

Abstract

Trichinelloscopy of wild animals is necessary to monitor the epizootological and epidemiological situation in the Kirov Region. During the period 2002–2021, 861 representatives of wild mammals, including 186 rodents and 257 wild boars, were studied by trichinelloscopy and, additionally, digestion in artificial gastric juice. The total infection with Trichinella larvae of the studied animals was 11%. Trichinella larvae were not found in otters, rodents and wild boars. The highest infection rates were registered in the wolf – EI – 76.1%, II – 18.2 (0.2 – 141.1) larvae per 1 g of muscle. The fox is less infected - 51.7%. Average intensity of invasion was 42.8 (4.5 – 195) larvae per 1 g of muscle. Extensiveness of invasion of lynx was 43.8%, raccoon dog – 20.0%, brown bear – 12.1%. 2 out of 3 wolverines are infected with Trichinella larvae. Trichinella larvae were found in 28.6% of weasels, 14% of badgers, 9.5% of martens and 2.9% of American minks. Badgers and minks have the highest rates of intensity of invasion. The Kirov Region is stationary unfavorable for trichinellosis of wild predatory animals, because in nature, a high extensiveness of invasion persists for a long time. The main distributors of trichinella invasion in this region are large predators: wolf, fox, and lynx.

Alariosis in Mustelidae in the Kirov Region

“…Резервуарным хозяином может быть и человек. Данный зооноз может представлять угрозу для жизни человека, тем более что мезоцеркарии A. alata зарегистрированы нами в мускулатуре кабанов, мясо которых человек употребляет в пищу [1].…”