Summary Crenosoma striatum is a host-specifi c metastrongiloid nematode causing respiratory tract disease in hedgehogs (Erinaceus europaeus). Since few studies have reported C. striatum in hedgehogs and little genetic data is available concerning this lungworm, this study aimed to determine the occurrence of C. striatum in a population sample of hedgehogs from Portugal, additionally providing morphological, histological and molecular data. From 2017 to 2018 a survey of infection was carried out in 11 necropsied hedgehogs. Worms were extracted from fresh lung tissues and microscopically evaluated. Molecular characterization of partial mitochondrial (12S rRNA) and nuclear (18S rRNA) genes was performed. The presence of lungworms in pulmonary tissues of five hedgehogs (45.5%) was detected. Morphological and histopathological analyses evidenced adult forms of nematodes consistent with C. striatum. Molecular characterization of 18S rRNA genes confirmed the classifi cation as C. striatum. Also, novel genetic data characterizing the mitochondrial (12S rRNA) gene of C. striatum is presented. This is the first report of C. striatum infection in hedgehogs of Portugal. The findings here reported provide new insights regarding the geographic distribution and the molecular identification of this lungworm species.

中文翻译：

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来自葡萄牙的欧洲刺猬 (Erinaceus europeus) 肺中的纹状体

总结 Crenosoma striatum 是一种宿主特异性变强线虫，可引起刺猬 (Erinaceus europaeus) 的呼吸道疾病。由于很少有研究报告刺猬中的 C. striatum 并且关于这种肺虫的遗传数据很少，因此本研究旨在确定来自葡萄牙的刺猬种群样本中 C. striatum 的发生，另外提供形态学、组织学和分子数据。从 2017 年到 2018 年，对 11 只尸体刺猬进行了感染调查。从新鲜的肺组织中提取蠕虫并在显微镜下进行评估。进行了部分线粒体 (12S rRNA) 和核 (18S rRNA) 基因的分子表征。检测到五只刺猬（45.5%）的肺组织中存在肺虫。形态学和组织病理学分析证明线虫的成虫形式与纹状体线虫一致。18S rRNA 基因的分子特征证实分类为纹状体。此外，还介绍了表征纹状体线粒体 (12S rRNA) 基因的新遗传数据。这是葡萄牙刺猬感染纹状体的第一份报告。这里报告的发现提供了关于这种肺虫物种的地理分布和分子鉴定的新见解。