山东省华支睾吸虫病防治40年效果

目的观察40年来山东省华支睾吸虫病防治效果。方法利用山东省历年华支睾吸虫病调查及年度工作资料,进行回顾性分析。结果1960-1970年代,全省共107个县有华支睾吸虫病流行,人群感染率为1.51%,85.70%的感染者为15岁以下儿童。经过40年的综合防治及进入1980年代以后天气持续干旱少雨,85.00%的沟渠、坑塘已断流干涸,90.00%以上河水受到工业废水的污染,使华支睾吸虫中间宿主鱼、螺的生存条件和数量明显减少;因全民卫生知识的普及,97.90%的人改变了生食或半生不熟的食鱼方式,减少了感染机会。至2003年人群感染率降至0.04%;95.60%的村感染率降至1.00%以下;60.00%的流行县未再查出感染者。结论山东省华支睾吸虫病的流行范围逐年缩小,人群感染率降到历史最低水平,基本达到了控制该病的传播流行。

Control of clonorchiasis sinensis in Shandong Province during past forty years

Objective To understand the achievements of clonorchiasis sinensis control in Shandong Province during the past forty years. Methods The data of the previous annual clonorchiasis sinensis investigation in Shandong Province were collected and analyzed. Results From 1960s to 1970s, there were 107 counties existing the prevalence of clonorchiasis sinensis in Shandong Province. The infection rate of population was 1.51%, and 85.70% of the infected people were children below fifteen years old. Through the forty years' control, the decreasing of intermediate hosts such as various kinds of fishes and water-snails due to 85. 00% of ditches and ponds dried up by the lasting drying weather after 1980s, and 90. 00% of rivers polluted by increasing liquid waste, as well as the decreasing of infective chances due to 97. 90% of people breaking off the habit of eating not-well-cooked fishes by popularizing health knowledge, to 2003, the population infection rate dropped to 0.04%, 95.60% of the village where residents had the infection dropped to below 1. 00% , and 60. 00% of counties where no Clonorchis sinensis infection was found. Conclusion The clonorchiasis sinensis transmission areas reduce gradually, the infection rate of population decreases to the lowest in the history and the transmission has been controlled in Shandong Province.