Molecular survey of Babesia spp. in red foxes (Vulpes Vulpes), Asian badgers (Meles leucurus) and their ticks in China

文献类型： 外文期刊

第一作者： Sang, Chunli

作者： Sang, Chunli;Yang, Yicheng;Wang, Yuanzhi;Yang, Yicheng;Dong, Qiaoyan;Hazihan, Wurelihazi;Xu, Bin;Liu, Guangyuan;Hornok, Sandor;Liu, Zhiqiang

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关键词： Red foxes; Asian badgers; Ticks; Babesia spp; China

期刊名称：TICKS AND TICK-BORNE DISEASES （ 影响因子：3.744； 五年影响因子：3.693 ）

ISSN： 1877-959X

年卷期： 2021 年 12 卷 4 期

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收录情况： SCI

摘要： Babesia species (Apicomplexa: Piroplasmorida) are tick-borne protozoan hemoparasites, which pose a significant threat to domestic animals, wildlife and humans. This study aimed to determine and characterize Babesia species in red foxes (Vulpes vulpes), Asian badgers (Meles leucurus) and their ticks. Blood, heart, liver, spleen, lung, kidney, large intestine and small intestine were collected from 19 wild carnivores (12 red foxes and 7 Asian badgers). All ticks were removed from these animals and identified according to morphological and molecular characteristics. The samples were tested for the presence of Babesia species using the 18S rRNA gene. Molecular analyses showed that the DNA of Babesia vogeli and Babesia vulpes was present in red fox organs/tissues and blood samples. A total of 54 hard ticks (38 Ixodes canisuga, 6 Haemaphysalis erinacei, 9 Ixodes kaiseri and 1 Dermacentor marginatus) were collected from red foxes and 12 (I. kaiseri) from Asian badgers. All ticks were adults. Among them, one I. kaiseri parasiting a red fox contained the DNA of B. vulpes while one I. canisuga was positive for Babesia sp. belonging to the clade "Babesia sensu stricto". Molecular and phylogenetic analyses indicated the presence of a novel genotype, Babesia sp. "badger China". Babesia sp. badger type A and type B from Asian badgers were different from those in European badgers. Co-infection with three Babesia genotypes was found in one Asian badger. This study provides the first data on Babesia infection in red foxes, Asian badgers and their ticks in China. Babesia vogeli was detected for the first time in red foxes in Asia. Co-infection and genetic diversity of Babesia genotypes in Asian badgers were also demonstrated.

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