The Academy of Animal and Veterinary Sciences, Qinghai University, 810016, Xining, China.
Qinghai Provincial Key Laboratory of Pathogen Diagnosis for Animal Disease and Green, Technical Research for Prevention and Control, 810016, Xining, China.
Vet Res Commun. 2023 Jun;47(2):947-952. doi: 10.1007/s11259-022-10012-x. Epub 2022 Nov 5.
Echinococcosis, caused by tapeworms of the genus Echinococcus, is a zoonotic parasitic disease. Various Echinococcus spp. are endemic and distributed in the Qinghai Province of China. Currently, few studies on the prevalence of Echinococcus spp. in the wild foxes are available. Hence, the aim of the study was to evaluate the prevalence of Echinococcus spp. in wild foxes in highly endemic areas of Qinghai Province, China. A total of 600 wild canid fecal samples were collected from Yushu, Qilian and Guinan in the study region, and 521 samples were successfully molecularly identified as wild foxes (Tibetan fox: 448, red foxes: 70, corsac fox: 3). Among the wild foxes, 5.57% (29/521) tested positive for Echinococcus spp. The prevalence rates of Echinococcus spp. in wild foxes in the Yushu, Qilian and Guinan areas were 2.51%, 15.22% and 0.96%, respectively. Furthermore, sequencing analysis indicated that E. multilocularis was the most prevalent species, occurring in 4.03% (21/521) of the wild foxes. Compared to E. granulosus occurring in 0.58% (3/521) of the foxes, E. shiquicus occurred in 1.54% (8/521), and E. shiquicus was first reported with 2.17% (3/138) prevalence in the Qilian area, indicating its transmission range is expanding. The current results provide useful epidemiological data for understanding and monitoring the dissemination of Echinococcus spp. by wild foxes in Qinghai Province, China.
包虫病是一种由细粒棘球绦虫属的绦虫引起的人畜共患寄生虫病。各种细粒棘球绦虫在中国青海省呈地方性流行和分布。目前，关于青海地区野生狐狸包虫病流行率的研究较少。因此，本研究旨在评估中国青海省高度流行地区野生狐狸包虫病的流行率。在研究区域内的玉树、祁连和贵南共采集了 600 份野生犬科动物粪便样本，其中 521 份样本成功地通过分子鉴定为野生狐狸（藏狐：448 只，赤狐：70 只，草原狐：3 只）。在野生狐狸中，5.57%（29/521）检测出包虫病阳性。玉树、祁连和贵南地区野生狐狸包虫病的流行率分别为 2.51%、15.22%和 0.96%。此外，测序分析表明，多房棘球绦虫是最常见的物种，在 4.03%（21/521）的野生狐狸中检出。与在 0.58%（3/521）的狐狸中检出的细粒棘球绦虫相比，在 1.54%（8/521）的狐狸中检出了泡状棘球绦虫，在祁连地区首次报道了 2.17%（3/138）的泡状棘球绦虫感染率，表明其传播范围正在扩大。目前的结果为了解和监测青海省野生狐狸包虫病的传播提供了有用的流行病学数据。
