中国西北四个省级行政区牦牛和绵羊的感染与多头蚴繁殖力，2023年
Infection and Metacestode Fertility in Yaks and Sheep - Four Provincial-Level Administrative Divisions, Northwestern China, 2023.
作者信息
Lan Qiufeng, Bianba Zhuoma, Mo Xiaojin, Zheng Guirong, Bold Bolor, He Gengcheng, Gao Haijun, Hu Wei, Zhang Ting, Zhou Xiaonong
机构信息
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research); NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Shanghai, China.
National Health Commission Key Laboratory of Echinococcosis Prevention and Control, Xizang Center for Disease Control and Prevention, Lhasa City, Xizang Autonomous Region, China.
出版信息
China CDC Wkly. 2025 May 2;7(18):614-619. doi: 10.46234/ccdcw2025.102.
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC?: Echinococcosis is a parasitic zoonosis caused by the larval stage of cestode species belonging to the genus , which is highly prevalent in northwestern China. 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 was 16.5% in yaks and 9.41% in sheep. The predominant species/genotype was 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 transmission and pathogenesis. This knowledge lays the foundation for developing accurate prevention and control strategies.
关于该主题已知的信息有哪些？：棘球蚴病是一种由绦虫属幼虫阶段引起的寄生虫人畜共患病，在中国西北部地区高度流行。棘球绦虫属包括众多在牲畜宿主中具有不同感染性和寄生模式的物种/基因型，这可能会影响寄生虫的传播动态。
本报告新增了哪些内容？：在中国的四个重点动物疫病流行区，牦牛的棘球绦虫感染率为16.5%，绵羊为9.41%。主要的物种/基因型是绵羊种（G1/G3），主要感染绵羊肝脏和牦牛肺部。然而，绵羊体内的育囊比牦牛更为常见。
对公共卫生实践有何启示？：了解牲畜感染率、流行的物种/基因型以及囊肿育性对于阐明棘球绦虫的传播机制和发病机制至关重要。这些知识为制定准确的预防和控制策略奠定了基础。
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