摘要
目的 研究三峡建坝后 ,库区环境和人口变化对三峡库区的斯氏肺吸虫病流行的影响。 方法 调查库区奉节县的自然环境、水面积变化和移民情况 ,并对溪蟹的肺吸虫囊蚴携带率进行流行病学调查 ,应用肺吸虫抗原 IDT和EL ISA检测易感人群。 结果 三峡水库蓄水后 ,长江水位升高至 175 m,奉节县水面积将增加 13.36万亩 ,有利于中间宿主溪蟹的繁殖、扩散 ,而淹没区的移民将使人口分布更趋集中。人群的肺吸虫抗原皮试 (IDT)和 EL ISA的阳性率分别为 14 .36 %和 9.30 % ,当地溪蟹的肺吸虫囊蚴携带率为 4 .0 8%。 结论 三峡库区环境的变化、人口的集中及居民有生食和半生食溪蟹的习惯将可能导致肺吸虫病的流行和扩散 ,但通过肺吸虫病防治知识的广泛宣传和教育 ,制定相应的防治措施 。
Objective To investigate the effect of change of environment on the epidemic of the paragonimiasis in the Three Gorge reservoir areas after the Three Gorge Dam is constructed. Methods Epidemiological survey was performed on the ecological environment, the change of water area, and the condition of immigrant and the infective rate of freshwater crab infected by metacercarias in Fengjie County. The infective rate of population was detected by the intradermal test (IDT) and ELISA. Results As the Three Gorge project and the immigrant are carrying on, the water level of the Yangtze River will rise to 175 m, the whole water area will increase by 133.6 thousands Mu in the County, which will favorite the growth and spreading of crab. The positive rate of IDT and ELISA was 14.36 % and 9.30 % respectively. The infective rate of freshwater crab infected by metacercarias of P. skrjabini was 4.08 %. Conclusion It is predicated that maximum risk of paragonimiasis breakout or epidemic may take place after a series changes of environment,aggregation of inhabitant and habit of eating raw or partially cooked crab. However, spreading knowledge on paragonimiasis to people and taking some prophylactic project could prevent the epidemic of paragonimiasis in Three Gorge reservoir areas.
出处
《中国寄生虫病防治杂志》
CSCD
2002年第1期30-32,共3页
Chinese Journal of Parasitic Disease Control
关键词
三峡工程
肺吸虫病
流行病学调查
The Three Gorge Project
paragonimiasis
epidemiological survey
