Ma Jian-Gang, Zheng Wen-Bin, Zhou Dong-Hui, Qin Si-Yuan, Yin Ming-Yang, Zhu Xing-Quan, Hu Gui-Xue
College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China; State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China.
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China.
Biomed Res Int. 2016;2016:9170167. doi: 10.1155/2016/9170167. Epub 2016 Jun 2.
Enzootic bovine leukosis (EBL) is a chronic lymphosarcoma disease of cattle caused by bovine leukemia virus (BLV). No information is available concerning the epidemiology of BLV infection in yaks (Bos mutus). One thousand five hundred and eighty-four serum samples from 610 black yaks and 974 white yaks from Gansu province, northwest China, were collected between April 2013 and March 2014 and tested for BLV antibodies using a commercially available ELISA kit. The overall BLV seroprevalence in yaks was 21.09% (334/1584), with 24.26% (148/610) black yaks and 19.10% (186/974) white yaks yielding positive results. Risk factor analysis indicated that with the exception of breed (OR = 1.36, 95% CI = 1.06-1.73, P < 0.05), the age, region, gender, farm, and the numbers of pregnancies were not considered as risk factors for the presence of BLV in yaks included in this study. This is the first report of BLV infection in yaks in China, which provides information for controlling BLV infection in yaks.
地方流行性牛白血病（EBL）是一种由牛白血病病毒（BLV）引起的牛慢性淋巴肉瘤疾病。目前尚无关于牦牛（Bos mutus）感染BLV流行病学的相关信息。2013年4月至2014年3月期间，采集了来自中国西北部甘肃省610头黑牦牛和974头白牦牛的1584份血清样本，使用市售ELISA试剂盒检测BLV抗体。牦牛中BLV的总体血清阳性率为21.09%（334/1584），其中黑牦牛的阳性率为24.26%（148/610），白牦牛的阳性率为19.10%（186/974）。危险因素分析表明，除品种外（OR = 1.36，95% CI = 1.06 - 1.73，P < 0.05），本研究中所涉及的牦牛年龄、地区、性别、养殖场及怀孕次数均未被视为感染BLV的危险因素。这是中国关于牦牛感染BLV的首次报道，为控制牦牛BLV感染提供了信息。
