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北京市１９９１年起建立了脊髓灰质炎（脊灰）监测系统，将１５岁以下不明原因急性弛缓性麻痹（ＡＦＰ）病例作为监测对象，不断提高监测系统敏感性、及时性、完整性，为北京市消灭脊灰证实提供了科学的依据。１９９１年以来共报告并经调查确认的本中１１０例ＡＦＰ病例，参照卫生部的综合诊断标准，均排除脊灰野病毒病例，仅发生口服脊灰疫苗（ＯＰＶ）相关病例（ＶＡＰＰ）２例，不排除ＶＡＰＰ２例，ＡＦＰ病例接触者及１５岁以下儿童粪便标本未分离出脊灰野病毒，表明北京市１５岁以下儿童已基本阻断脊灰野病毒传播。
Since 1991, polio (polio) monitoring system has been established in Beijing. As a monitoring target of acute flaccid paralysis (AFP) under the age of 15, the sensitivity, timeliness and completeness of the monitoring system are continuously improved. Polio eradication confirmed the city provides a scientific basis. A total of 110 AFP cases reported since 1991 and confirmed by the survey were excluded from the cases of poliovirus with reference to the comprehensive diagnostic criteria of the Ministry of Health. Only 2 cases of oral poliovirus (OPV) related cases (VAPP) No VAPP2 cases, AFP case contacts and stool samples from children under 15 years old were not isolated from poliovirus, indicating that children under the age of 15 in Beijing have basically blocked the transmission of poliovirus.