Objective To analyze the pathological lesion of monkeys caused by neurovirulence test of oral poliovirus vaccine(OPV) and evaluate the two injection methods for the test.

• 目的分析口服脊髓灰质炎减毒活疫苗(OPV)猴体神经毒力试验病理学改变特征,对OPV猴体神经毒力试验两种注射方法进行评价。