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湖南省 1993～ 2 0 0 0年连续开展了 7次 14轮消灭脊髓灰质炎强化免疫日活动 ,累计接种 4岁以下儿童3911 3万人次 ,成功阻断本土脊灰野病毒的传播 ,顺利实现消灭脊灰目标。分析表明 ,随着强化免疫活动的持续开展 ,<1岁组儿童的漏登、漏种情况在下一次强化免疫活动中得到了弥补 ,提高了脊灰疫苗的免疫覆盖率 ,减少了 1～ 3岁年龄组零剂次儿童数。零剂次儿童主要集中于 <1岁组儿童和外地 (流动 )儿童 ,由此提示我们今后应加强常规免疫工作和对流动儿童的管理 ,以巩固目前的无脊灰状态
Hunan Province carried out seven rounds of intensified immunization activities against poliomyelitis for seven consecutive times from 1993 to 2000 and accumulated 3911 30000 children under 4 years of age successfully blocking the spread of native poliovirus and successfully eliminating the ridge Gray target. The analysis showed that as the intensified immunization activities continued, the leakage and leakage of children in the 1-year-old group were compensated for the next immunization campaign, raising the immunization coverage of the poliovirus vaccine and reducing the frequency of immunization by 1 to 3 years Age zero number of children. Zero-dose children are mainly concentrated in children <1 year of age and in the field (floating children), thus suggesting that we should strengthen routine immunization and management of migrant children in the future in order to consolidate the current polio-free status