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目的 分析全国血吸虫病疫情监测点 4年来的疫情变化规律。方法 根据《全国血吸虫病疫情监测点方案》,对全国疫情监测点 2 0 0 0～ 2 0 0 3年的疫情进行纵向监测。结果 在 2 1个监测点中 ,6个监测点居民血吸虫感染率呈下降趋势 ;2个监测点活螺密度和感染螺密度逐步下降 ,但多数监测点的螺情仍未得到有效的控制 ;大部分监测点耕牛感染率年间有起伏且感染率居高不下 ;监测点4年中每年均有急性血吸虫病例发生 ,但晚期血吸虫病人数没有明显变化 ;在消灭地区的上海枫泾监测点未发现新病例及阳性钉螺。结论 现有防治措施在血吸虫病情控制上已取得一定成效 ,但应长期坚持 ,而钉螺和耕牛的监测和控制尚需进一步加强。
Objective To analyze the epidemic situation of schistosomiasis surveillance in the past four years. Methods Based on the “National Schistosomiasis Surveillance Program”, the epidemic situation of the national epidemic surveillance sites was monitored vertically from 2000 to 2003. Results Among the 21 monitoring sites, the infection rate of resident schistosomiasis showed a decreasing trend at 6 monitoring sites. The live lobe density and infection lobed density decreased gradually at the 2 monitoring sites, but the snail status of most monitoring sites was still not effectively controlled. Large In some monitoring sites, the infection rate of cattle during the year fluctuated and the infection rate was high. There were cases of acute schistosomiasis every year in the monitoring sites for 4 years, but there was no significant change in the number of late schistosomiasis. No locus of Shanghai Fengjing was found New cases and positive snails. Conclusion The existing control measures have achieved some success in the control of schistosomiasis but should be persisted in the long run. The monitoring and control of snails and cattle needs to be further strengthened.