Ultrasonography screening of hepatic cystic echinococcosis in sheep flocks used for evaluating control progress in a remote mountain area of Hejing County, Xinjiang
文献类型： 外文期刊
作者： Qi, Xinwei 1 ; Song, Tao 1 ; Li, Zhao 1 ; Jiang, Tao 3 ; Zhang, Zhuangzhi 2 ; Wu, Chuanchuan 4 ; Guo, Gang 5 ; Dong, Jian 1 ; Dawuti, Wubulitalifu 1 ; Dou, Jingrui 1 ; Li, Jun 1 ; Wen, Hao 1 ; Zhang, Wenbao 1 ;
作者机构： 1.Xinjiang Med Univ, Clin Med Res Inst, State Key Lab Pathogenesis Prevent & Treatment Hig, Affiliated Hosp 1, 137 South Liyushan Rd, Urumqi 830054, Xinjiang, Peoples R China
2.Xinjiang Acad Anim Sci, Vet Res Inst, 468 Alishan Rd, Urumqi 830011, Xinjiang, Peoples R China
3.Xinjiang Med Univ, Anim Ctr, 393 Xinyi Rd, Urumqi 830000, Xinjiang, Peoples R China
4.Xinjiang Med Univ, Basic Med Coll, 567 North Shangde Rd, Urumqi 830039, Xinjiang, Peoples R China
5.Suzhou Ctr Dis Control & Prevent, 72 Sanxiang Rd, Suzhou 215004, Jiangsu, Peoples R China
关键词： Ultrasonography; Cystic echinococcosis; Echinococcus granulosus; Sheep flocks; Active cysts
期刊名称：BMC VETERINARY RESEARCH （ 影响因子：2.6； 五年影响因子：2.9 ）
ISSN：
年卷期： 2024 年 20 卷 1 期
页码：
收录情况： SCI
摘要： Background Although ultrasonography (US) has been widely used in the diagnosis of human diseases to monitor the progress of cystic echinococcosis (CE) control, the screening method for hepatic CE in sheep flocks requires adjustment. In this study, we used a US scanner to screen sheep flocks and evaluated the efficacy of dosing dogs once a year with praziquantel for 7 years from 2014 to 2021. Methods All sheep in the three flocks were screened using an ultrasound scanner in 2014 and compared with the prevalence of infection in 2021 in Bayinbuluke, Xinjiang, China. Sheep age was determined using incisor teeth. Cyst activity and calcification were determined using US images. The dogs were dewormed with praziquantel once a year to control echinococcosis in the community. Results Three flocks had 968 sheep in 2014, with 13.22%, 22.62%, 18.7%, 27.27%, 11.88%, and 6.3% of sheep aged 1, 2, 3, 4, 5, and >= 6 years old, respectively. US scanning revealed that the overall CE prevalence was 38.43% (372/968), with active cysts and calcified cysts present in 9.40% (91/968) and 29.02% (281/968) of the sheep, respectively. For the young sheep aged 1 and 2 years, the prevalence of active and calcified cysts was: 1.56% and 0.91%, and 10.94% and 18.72%, respectively. Approximately 15.15% and 16.52% of the 4- and 5-year-old sheep, respectively, harbored active cysts. There was no significant difference in the infection rates of sheep between 2014 and 2021 (P > 0.05). Conclusions US is a practical tool for the field screening of CE in sheep flocks. One-third of the sheep population in the flocks was 1-2 years old, and these sheep played a very limited role in CE transmission, as most of the cysts were calcified. Old sheep, especially culled aged sheep, play a key role in the transmission of CE. Dosing dogs once a year did not affect echinococcosis control.
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