Gong Tengfang, Su Xiaoyi, Li Fen, He Junlin, Chen Shuyu, Li Wenchao, Xie Xinrui, Liu Yisong, Zhang Xi, Liu Wei
Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China.
Department of Parasitology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China.
Animals (Basel). 2022 May 9;12(9):1216. doi: 10.3390/ani12091216.
Sparganosis, caused by the plerocercoid larvae of tapeworms, is a public health hazard worldwide. The prevalence and genetics of sparganum from snakes remain unclear. In this study, we investigated the prevalence of sparganum infection in wild snakes in Hunan province and compared the prevalence of tapeworms in snakes worldwide. Furthermore, the genetic diversity of collected isolates was analyzed using mitochondrial b and 1 genes. The result shows that the sparganum infection rate in wild snakes (89.50%, 402/449) was higher in Hunan than in other regions. Genetic diversity analysis based on concatenated sequences revealed high genetic diversity but no distinct genetic structure among populations. Phylogenetic analysis supported the division of European and Chinese isolates and a single species in Chinese isolates. The prevalence of tapeworms in snakes is serious, and the risk of sparganosis should be further publicized.
裂头蚴病是由绦虫的裂头蚴幼虫引起的，在全球范围内对公共卫生构成危害。蛇源裂头蚴的流行情况和遗传学仍不清楚。在本研究中，我们调查了湖南省野生蛇类中裂头蚴感染的流行情况，并比较了全球范围内蛇类中绦虫的流行情况。此外，使用线粒体b和1基因分析了收集到的分离株的遗传多样性。结果表明，湖南省野生蛇类的裂头蚴感染率（89.50%，402/449）高于其他地区。基于串联序列的遗传多样性分析显示，种群间遗传多样性高但无明显的遗传结构。系统发育分析支持欧洲和中国分离株的划分以及中国分离株为单一物种。蛇类中绦虫的流行情况严重，应进一步宣传裂头蚴病的风险。
