The IBRV infection in some areas of China was investigated by the established ELISA technique, and an average infection rate of 67.1% in cattle was obtained.
应用该诊断方法调查了我国部分地区IBRV的感染情况，结果显示，这些地区的IBRV感染率为67.1%。
The IBRV infection in some areas of China was investigated by the established ELISA technique, and an average infection rate of 67.1% in cattle was obtained.
应用该诊断方法调查了我国部分地区IBRV的感染情况，结果显示，这些地区的IBRV感染率为67.1%。
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