Seroprevalence of bovine theileriosis in northern China
文献类型: 外文期刊
第一作者: Li, Yaqiong
作者: Li, Yaqiong;Liu, Zhijie;Liu, Junlong;Yang, Jifei;Li, Qian;Guo, Pengfei;Guan, Guiquan;Liu, Guangyuan;Luo, Jianxun;Yin, Hong;Li, Youquan;Yin, Hong
作者机构:
关键词: ELISA;Microscopy;Prevalence;Theileriosis
期刊名称:PARASITES & VECTORS ( 影响因子:3.876; 五年影响因子:3.959 )
ISSN: 1756-3305
年卷期: 2016 年 9 卷
页码:
收录情况: SCI
摘要: Background: Bovine theileriosis is a common disease transmitted by ticks, and can cause loss of beef and dairy cattle worldwide. Here, an indirect enzyme-linked immunosorbent assay (iELISA) based on Theileria luwenshuni surface protein (TlSP) was developed and used to carry out a seroepidemiological survey of bovine theileriosis in northern China. Methods: We used the BugBuster Ni-NTA His.Bind Purification Kit to purify recombinant TlSP (rTlSP), which was subsequently analyzed by Western Blotting to evaluate cross-reactivity with other pathogen-positive sera. The iELISA method based on rTlSP was successfully developed. Sera from 2005 blood samples were tested with the rTlSP-iELISA method, and blood smears from these samples were observed by microscopy. Results: The specificity of iELISA was 98.9%, the sensitivity was 98.5%, and the cut-off was selected as 24.6%. Western Blot analysis of rTlSP confirmed that there were cross-reactions with Theileria luwenshuni, Theileria uilenbergi, Theileria ovis, Theileria annulata, Theileria orientalis and Theileria sinensis. The epidemiological survey showed that the highest positive rate of bovine theileriosis was 98.3%, the lowest rate was 84.1%, and the average positive rate was 95.4% by iELISA. With microscopy, the highest positive rate was 38.9%, the lowest rate was 5.1%, and the relative average positive rate was 13.7%. Conclusions: An rTlSP-iELISA was developed to detect circulating antibodies against bovine Theileria in northern China. This is the first report on the seroprevalence of bovine theileriosis in northern China, and it also provides seroepidemiological data on bovine theileriosis in China.
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