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脊髓灰质炎 (简称脊灰 )是由脊灰病毒引起的一种急性肠道传染病。控制乃至消灭脊灰最重要的策略是用口服脊灰减毒活疫苗 (ＯＰＶ)进行有效地预防。但ＯＰＶ的应用 ,在服苗者或其接触者中出现了极少量因服苗引起的麻痹型脊灰病例(Ｖａｃｃｉｎｅ—ＡｓｓｏｃｉａｔｅｄＰａｒａ
Polio (Polio) is an acute intestinal infection caused by poliovirus. The most important strategy for controlling and even eradicating polio is the effective prevention with live attenuated oral polio vaccine (OPV). However, the use of OPV showed a very small number of cases of paralytic polio caused by vaccine-taking in the vaccine or its contacts (Vaccine-AssociatedPara