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1994～1995年间对22个单位220只KM小鼠进行了鼠痘病毒、淋巴细胞脉络丛脑膜炎病毒和流行性出血热病毒的检测,对4个单位的40只Wistar大鼠进行了出血热病毒的检测,对4个单位的19只豚鼠进行了淋巴细胞性脉络丛脑膜炎病毒的检测,检测结果均为阴性。抽检了3个单位的25只普通级KM小鼠的鼠肝炎病毒,阳性率为20％。
Twenty-two 220 KM mice from 1994 to 1995 were tested for the presence of the mouse poxvirus, lymphocytic choriomeningitis virus and epidemic hemorrhagic fever virus. Forty Wistar rats of 4 units were subjected to the hemorrhagic fever virus Of 19 guinea pigs of 4 units were tested for lymphocytic choriomeningitis virus and the test results were negative. A total of 25 normal KM mice of 3 units were randomized to detect the hepatitis C virus with a positive rate of 20%.