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首页> 外文期刊>Veterinary Parasitology >Trichinella spiralis prevalence among wildlife of a boreal region rapidly reduced in the absence of spillover from the domestic cycle
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Trichinella spiralis prevalence among wildlife of a boreal region rapidly reduced in the absence of spillover from the domestic cycle

机译：在北部野生动物野生动物中普罗希氏菌普遍存在迅速减少了国内周期的溢出量

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摘要

Carnivore and omnivore animals are the main reservoir hosts of nematodes of the genus Trichinella. Out of the twelve taxa identified so far in the world, four, namely Trichinella spiralis, Trichinella nativa, Trichinella britovi and Trichinella pseudospiralis, are circulating in Europe. All these four species were detected in Finnish wild animals and T. spiralis also in domestic pigs and synanthropic rats of Finland up to 2004, when the last T. spiralis infection was documented in a domestic pig. In the periods 1993-1997 and 1999-2005, T. spiralis was detected in 13.6% (6/44) and in 14.5% (46/317) of infected wild animals, respectively. The aims of the present study were to investigate the prevalence of Trichinella spp., especially T. spiralis in wild carnivores of Finland, 7-9 years after the eradication of Trichinella infection from Finnish domestic pigs, and to evaluate the impact of the disappearance of domestic cycle of T. spiralis on the sylvatic Trichinella cycle(s). Trichinella spp. larvae were detected in 34.7% (1081/3112) wild animals and 835 (77.2%) Trichinella spp. isolates were identified at the species level. Trichinella spiralis was detected in 9 animals (1.0% of identified infections) as single, double or triple infections; whereas, T. spiralis had been detected in 13.6% and in 14.5% of infected wild animals in the course of the two previous investigations. The reduction of T. spiralis prevalence from 1993-1997 to 2011-2013 is statistically significant (p 0.001) both per total tested animals and per host species. The results of this study support the hypothesis of spillover from domestic pigs as a source of T. spiralis in wildlife. The eradication of T. spiralis from the domestic cycle in Finland in 2004 has probably established a virtuous cycle reducing the prevalence of this pathogen among wild carnivores. We can expect that within some years and in absence of T. spiralis reintroduction in the domestic habitat, it might even disappear from the Finnish wildlife.
机译：食肉动物和omnivore动物是Trichinella属的主要储层主体。在世界上迄今为止发现的十二个分类群中，四个，即Trichinella spiralis，Trichinella Nativa，Trichinella Britovi和Trichinella Pseudospirlis正在欧洲流传。所有这四种物种在芬兰野生动物中检测到芬兰野生动物，也在芬兰的国内猪和芬兰的股东大鼠中检测到2004年，当时在国内猪中记录了最后的T. spiralis感染。在1993 - 1997年和1999年至1999 - 2005年期间，在13.6％（6/44）和14.5％（46/317）的感染野生动物中检测到T. sporalis。本研究的目的是探讨Trichinella SPP的患病率，尤其是芬兰野生食肉动物中的T. Spiralis，从芬兰国内猪根除Trichinella感染后7-9岁，并评估失踪的影响斯皮兰的国内循环在Sylvatic Trichinella循环上。 Trichinella SPP。在34.7％（1081/3112）野生动物和835（77.2％）Trichinella SPP中检测到幼虫。在物种水平上鉴定分离物。在9只动物（鉴定的感染的1.0％）中检测到Trichinella spiralis，如单一，双或三重感染;然而，在两次以前的调查中，在13.6％和14.5％的受感染的野生动物中被检测到的T.Tavalis。从1993-1997〜2011-2013的T.螺肺的减少均有统计学显着（P <0.001），每种测试动物和每个宿主物种都是如此。本研究结果支持从家畜溢出的假设，作为野生动物的螺旋源。从2004年芬兰国内周期根除了T. Spiralis可能已经建立了良好的循环，降低了野生食肉动物中这种病原体的患病率。我们可以期待在多年来，在国内栖息地的某些年份和螺旋螺旋重新引入时，它甚至可能会从芬兰野生动物那里消失。

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