2017年宁夏地区牛流行热血清流行病学调查

Investigation of the Seroprevalence of Bovine Ephemeral Fever in Ningxia in 2017

为了解宁夏地区牛流行热的流行和分布情况,科学制定牛流行热防控措施,本研究于2017年5月和10月份在宁夏5个市22个县(市、区)63个场户采集牛血清共1 260份,使用间接ELISA方法进行牛流行热病毒抗体检测。试验结果显示,宁夏地区牛流行热病毒抗体阳性样品有65份,阳性率为5.16%,散养户阳性率显著高于规模场,肉牛抗体阳性率高于奶牛。本次调查结果表明宁夏地区牛群中存在牛流行热病毒感染,但感染率较低。

In order to investigate the prevalence and distribution of bovine ephemeral fever in Ningxia, totally 1260 serum samples were collected from 63 farms of 5 cities in Ningxia, in May and October 2017. Indirect ELISA was used to detect antibodies against bovine ephemeral fever virus. Results showed that 65 samples were positive for bovine ephemeral fever virus(BEFV) antibody, demonstrating a prevalence of 5.16%. The seroprevalence was significantly higher in large-scale cattle farms than that in backyard cattle farms. Higher seroprevalence was observed in beef cattle than that in cows. The survey showed that the bovine ephemeral fever was found in Ningxia area, but the infection rate was low.