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我国牦牛源冠状病毒流行现状分析

7592 2020-03-12 11:27:05 刘蓉菁,张志平,王谢忠,等 中国动物检疫
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为了解我国牦源牛冠状病毒(BCoV)流行现状,通过查阅文献资料方法,汇总分析我国牦牛主产地区的BCoV检测情况。资料显示:2012年以来,我国青海、四川、新疆、西藏等牦牛主产省(自治区)的牦牛群中普遍存在BCoV感染且感染率较高,平均血清抗体阳性率多在80%以上,病原学阳性率多在60%以上。需采取加强饲养管理、控制混合感染、做好隔离净化等措施,控制牦牛群中的BCoV流行。我国的BCoV研究起步较晚,流行病学方面的报道较少,有必要进一步加强该病毒在牦牛中致病机理、流行情况和防治技术等方面的调查研究。本文为掌握我国牦牛中的BCoV流行情况及其防控提供了参考。

Analysis on the Prevalence Status of Yak-derived Bovine Coronavirus in China

In order to investigate the prevalence status of yak-derived bovine coronavirus(BCoV) in China,relevant testing results in main production regions of yak were summarized and analyzed by means of reviewing literature. As it was found that,since 2012,BCoV had been widely prevalent in the main provinces(autonomous regions),including Qinghai,Sichuan,Xinjiang and Tibet,with a high infection rate,and the average positive rates of serum antibodies in most regions were above 80%,the positive rates of pathogens were above 60%. In order to control the disease,a series of measures should be carried out,such as,strengthening husbandry management,preventing any mixed infection,and striving to isolate and purify the virus. However,there were few epidemiological reports due to late beginning of BCoV study in China,it was necessary to further strengthen relevant investigation and research on the pathogenic mechanism,prevalence and control technology of the disease. This study would provide some references for identification of BCoV prevalence and its prevention and control in China.

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