Food Science and Engineering College of Inner Mongolia Agricultural University, Hohhot 010018, PR China.
Inner Mongolia Food Safety and Inspection Testing Center, Hohhot 010090, PR China.
Parasite. 2020;27:11. doi: 10.1051/parasite/2020008. Epub 2020 Feb 19.
Toxoplasma gondii is an important zoonotic parasite that can infect almost all warm-blooded animals, including humans, and infection may result in many adverse effects on animal husbandry production. Animal husbandry in Inner Mongolia is well developed, but data on T. gondii infection in sheep are lacking. In this study, we determined the seroprevalence and risk factors associated with the seroprevalence of T. gondii using an indirect enzyme-linked immunosorbent assay (ELISA) test. A total of 1853 serum samples were collected from 29 counties of Xilin Gol League (n = 624), Hohhot City (n = 225), Ordos City (n = 158), Wulanchabu City (n = 144), Bayan Nur City (n = 114) and Hulunbeir City (n = 588). The overall seroprevalence of T. gondii was 15.43%. Risk factor analysis showed that seroprevalence was higher in sheep ≥12 months of age (21.85%) than that in sheep <12 months of age (10.20%) (p < 0.01). Seroprevalence was higher in male sheep (18.76%) than females (12.80%) (p < 0.01). Barn-feeding sheep (23.13%) had higher prevalence than grazing sheep (10.94%) (p < 0.01). The seroprevalence was significantly different in different districts (p < 0.01). This study shows that sheep are exposed to T. gondii in Inner Mongolia, and provides a data reference for public health and disease control.
刚地弓形虫是一种重要的动物源性寄生虫，几乎可以感染所有温血动物，包括人类，感染可能对畜牧业生产造成许多不良影响。内蒙古畜牧业发达，但缺乏绵羊弓形虫感染的数据。在这项研究中，我们使用间接酶联免疫吸附试验（ELISA）检测确定了 T. gondii 的血清流行率和与血清流行率相关的危险因素。从锡林郭勒盟（n=624）、呼和浩特市（n=225）、鄂尔多斯市（n=158）、乌兰察布市（n=144）、巴彦淖尔市（n=114）和呼伦贝尔市（n=588）的 29 个县共采集了 1853 份血清样本。T. gondii 的总血清阳性率为 15.43%。危险因素分析表明，12 月龄以上绵羊的血清阳性率（21.85%）高于 12 月龄以下绵羊（10.20%）（p<0.01）。雄性绵羊的血清阳性率（18.76%）高于雌性（12.80%）（p<0.01）。圈养绵羊（23.13%）的阳性率高于放牧绵羊（10.94%）（p<0.01）。不同地区的血清阳性率存在显著差异（p<0.01）。本研究表明，内蒙古绵羊感染了 T. gondii，为公共卫生和疾病控制提供了数据参考。
