Trichinella nematodes still circulate in various hosts in both domestic and sylvatic environments. Recently, in Europe, the transmission of Trichinella spp. to humans has been attributed more to wild animals than to domestic animals. However, domestic animals could still be a source of human infections in some regions. Therefore, our aim was to determine the species composition of Trichinella and the prevalence and intensity of infections in animal populations from the domestic cycle, namely pigs (Sus scrofa f. domestica); the synantropic cycle, in the form of rats (Rattus norvegicus); and the sylvatic cycle, namely wild boars (Sus scrofa) and red foxes (Vulpes vulpes), in Poland. The findings showed that the nematode prevalence in pigs (0.0002 %) and wild boars (0.3 %) was lower than it was in red foxes (4 %). A very high prevalence was found in rats (23.3 %), but it must be emphasized that the investigated rat samples were collected from farms where pigs were infected with Trichinella spp. The mean larval burden was found to be higher in wild boars and pigs (11.48 lpg and 10.19 lpg) than in red foxes and rats (4.09 and 2.30). Trichinella spiralis was the predominant species in pigs (98.6 %), wild boars (77.3 %) and rats (100 %), while in red foxes, this species occurred less frequently (15.5 %). The most frequently occurring species in red foxes was Trichinella britovi (73.2 %). Moreover, in wild boar and red fox coinfections, T. spiralis/T. britovi were detected (3.1 and 9.9 %, respectively). In addition, Trichinella pseudospiralis was detected in a few wild boars (0.5 %) and Trichinella nativa was found in one red fox and one wild boar. Furthermore, different T. spiralis and T. britovi prevalence ratios in various geographical regions were found. In the wild boar population, a higher frequency of T. spiralis (70-85 % of infected animals) was observed in the western and central parts of Poland, while in the eastern part, this dominance was not as evident (46-59 %). In the red fox population, T. britovi was abundant throughout the entire territory; however, its highest prevalence was in the east (90-100 %).

中文翻译：

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旋毛虫种类相对于寄主种类和地理位置的多样性。

旋毛虫线虫仍然在家庭环境和sylvatic环境中的各种宿主中传播。最近，在欧洲，旋毛虫属的传播。归因于人类，归因于野生动物而不是家畜。但是，在某些地区，家畜仍可能是人类感染的来源。因此，我们的目的是确定旋毛虫的种类组成以及家养周期即猪（Sus scrofa f。domestica）的动物种群中感染的流行程度和强度。大鼠（Rattus norvegicus）形式的顺周期；波兰的野猪（Sus scrofa）和狐狸（Vulpes vulpes）的森林周期。研究结果表明，猪和野猪中的线虫患病率（0.0002％）低于赤狐（4％）。在大鼠中发现了很高的患病率（23.3％），但必须强调的是，所研究的大鼠样品是从猪感染旋毛虫属的农场收集的。发现野猪和野猪的平均幼虫负担（11.48 lpg和10.19 lpg）高于赤狐和大鼠（4.09和2.30）。旋毛虫是猪（98.6％），野猪（77.3％）和大鼠（100％）的主要物种，而在狐狸中，这种物种的发生频率较低（15.5％）。狐狸中最常见的物种是旋毛虫（Trichinella britovi）（73.2％）。此外，在野猪和赤狐同时感染中，T。spiralis / T。检出了britovi（分别为3.1％和9.9％）。此外，在一些野猪（0.5％）中检出了旋毛虫（Trichinella pseudospiralis），在一只赤狐和一只野猪中检出了纳希菌（Trichinella nativa）。此外，在不同的地理区域中发现了不同的螺旋螺旋体和布里托螺旋体流行率。在野猪种群中，在波兰的西部和中部发现了螺旋锥虫的发病率较高（受感染动物的70-85％），而在东部，这种优势并不明显（46-59％） ）。在赤狐种群中，布里托热猪笼草在整个领土上都很丰富。但是，其患病率最高的地区是东部（90-100％）。布列托维遍布整个领土。但是，其患病率最高的地区是东部（90-100％）。布列托维遍布整个领土。但是，其患病率最高的地区是东部（90-100％）。