Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA.
Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA.
Vet Parasitol Reg Stud Reports. 2021 Jul;25:100609. doi: 10.1016/j.vprsr.2021.100609. Epub 2021 Jul 14.
Trichinella spp. infect wild carnivores throughout the world. We determined the prevalence and mean infection intensity of Trichinella spp. in bobcats (Lynx rufus) from 41 counties in Oklahoma (USA). Tongues from 306 bobcats were examined using artificial tissue digestion. The prevalence (95% confidence interval) of Trichinella spp. was 5.9% (3.7%-9.2%) in which 18 of the 301 bobcats were infected. Bobcats infected with Trichinella spp. were detected in 10 of the 41 (24.4%; 13.7%-39.5%) counties sampled. Although variable, a statistically significant difference was not detected in the prevalence of Trichinella spp. among counties where bobcats were collected. The mean (standard deviation) and median (range) infection intensity of Trichinella sp. larvae were 30.9 (39.8) and 9.6 (0.6-119.9) larvae per gram of tissue examined. Genotyping results demonstrated that 17 bobcats were infected with T. murrelliand one bobcat was infected with T. pseudospiralis. This is the first report of T. pseudospiralis in bobcats and in Oklahoma. These data suggest the bobcat, as an obligate carnivore, is likely an important host in maintaining T. murrelli sylvatic cycles in Oklahoma.
旋毛虫属寄生虫感染全世界的野生食肉动物。我们确定了来自美国俄克拉荷马州 41 个县的山猫（Lynx rufus）中旋毛虫属寄生虫的流行率和平均感染强度。使用人工组织消化法检查了 306 只山猫的舌头。旋毛虫属寄生虫的流行率（95%置信区间）为 5.9%（3.7%-9.2%），其中 301 只山猫中有 18 只被感染。在抽样的 41 个县中的 10 个县（24.4%；13.7%-39.5%）检测到感染旋毛虫属寄生虫的山猫。尽管存在差异，但在感染旋毛虫属寄生虫的山猫中，各县之间的流行率没有检测到统计学上的显著差异。旋毛虫幼虫的平均（标准差）和中位数（范围）感染强度分别为 30.9（39.8）和 9.6（0.6-119.9）幼虫/克检查组织。基因分型结果表明，17 只山猫感染了 T. murrelli，一只山猫感染了 T. pseudospiralis。这是首次在山猫和俄克拉荷马州报告 T. pseudospiralis。这些数据表明，作为一种专性食肉动物，山猫可能是在俄克拉荷马州维持 T. murrelli 森林循环的重要宿主。
