Echinococcus Infection and Metacestode Fertility in Yaks and Sheep - Four Provincial-Level Administrative Divisions, Northwestern China, 2023.

IF 4.3 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

中国疾病预防控制中心周报 Pub Date : 2025-05-02 DOI:10.46234/ccdcw2025.102

Qiufeng Lan, Zhuoma Bianba, Xiaojin Mo, Guirong Zheng, Bolor Bold, Gengcheng He, Haijun Gao, Wei Hu, Ting Zhang, Xiaonong Zhou

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Abstract

What is already known about this topic?: Echinococcosis is a parasitic zoonosis caused by the larval stage of cestode species belonging to the genus Echinococcus, which is highly prevalent in northwestern China. Echinococcus spp. includes numerous species/genotypes that have different infectivity and parasitism patterns in livestock hosts, potentially affecting the transmission dynamics of the parasite.

What is added by this report?: In four PLADs of China, the prevalence of Echinococcus was 16.5% in yaks and 9.41% in sheep. The predominant species/genotype was E. granulosus s.s. (G1/G3), which mainly infected sheep liver and yak lung. However, fertile cysts were more frequent in sheep than in yaks.

What are the implications for public health practice?: Understanding the livestock infection rate, prevalent species/genotypes, and cyst fertility is essential for elucidating the mechanisms of Echinococcus transmission and pathogenesis. This knowledge lays the foundation for developing accurate prevention and control strategies.

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牦牛和绵羊棘球蚴感染和囊足蚴繁殖——西北四省（区），2023。

关于这个话题我们已经知道了什么？棘球绦虫病是由棘球绦虫属绦虫幼虫期引起的一种寄生虫性人畜共患病，在中国西北地区高度流行。棘球绦虫包括许多种/基因型，它们在家畜宿主中具有不同的传染性和寄生模式，可能影响寄生虫的传播动态。这份报告增加了什么内容？在中国4个畜禽种群中，牦牛棘球蚴感染率为16.5%，绵羊为9.41%。优势种/基因型为颗粒绦虫s.s. (G1/G3)，主要感染羊肝和牦牛肺。然而，可育囊肿在绵羊中比在牦牛中更常见。这对公共卫生实践有什么影响？了解棘球蚴在家畜中的感染率、流行种/基因型和囊性是阐明棘球蚴传播和发病机制的必要条件。这一知识为制定准确的预防和控制战略奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

中国疾病预防控制中心周报

CiteScore

5.90

自引率

0.00%

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