根据卫生部地病司关于《达到消灭血吸虫病标准地区的监测巩固技术方案》的要求，从１９８５年开始，对已达到消灭血吸虫病标准的县、区和乡（镇）采用多种方法开展了疫情监测工作。１实行分类指导的策略把监测工作分为内部巩固和外部输入监测２个阶段。在“达标”近期应着重于 According to the requirements of the Ministry of Health’s Department on “Monitoring and Consolidating Technical Programs to Achieve the Criteria for the Elimination of Schistosomiasis”, since 1985, counties, districts and townships (towns) that have reached the standard of eradicating schistosomiasis have adopted a variety of methods Epidemic monitoring. 1 The implementation of the guidance of the classification strategy to monitor the work is divided into internal consolidation and external input monitoring two stages. In the “standard” should focus on the near future