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目的调查南水北调东线工程通水前山东受水区土源性线虫和华支睾吸虫感染现状,为制定通水后干预措施提供科学依据。方法沿着输水干渠分布县,以随机抽样的方法确定目标人群,应用改良加藤氏(Kato--kata)厚涂片法检查全部目标人群,以透明胶纸肛拭法检查目标人群中的1～12岁儿童。结果共计调查7个县的21个点,粪检10510人。检出蛔虫、钩虫、鞭虫、蛲虫和肝吸虫5种寄生虫,土源性线虫感染率3.72%,肝吸虫感染率为0.06%,肠道寄生虫总感染率为3.79%。各县寄生虫感染率差异较大,性别间感染率无显著性差异,学龄前儿童感染率最高,感染度普遍较轻,多虫种感染现象少见,感染1种寄生虫者占76.69%,结论受水区生态环境的改变,可能促进土源性线虫病和肝吸虫病流行和扩散。通过建立监测点、加强健康教育和消除传染源等干预措施,可有效降低土源性线虫病和肝吸虫病在受水区的流行程度。
Objective To investigate the status of soil-borne nematode and Clonorchis sinensis infection in water-receiving areas of Shandong before the East Route Project of South-to-North Water Diversion to provide a scientific basis for formulating intervention measures after water flow. Methods According to the distribution counties along the water main canal, the target population was determined by random sampling method. All the target population were examined by modified Kato - kata smear method. 12-year-old child. Results A total of 21 points in 7 counties were surveyed and 10510 people were seized. Five kinds of parasites such as roundworm, hookworm, whipworm, pinworm and liver fluke were detected, the infection rate of soil-borne nematode was 3.72%, the infection rate of hepatic fluke was 0.06% and the total infection rate of intestinal parasites was 3.79%. Parasitic infection rates in different counties were quite different. There was no significant difference in infection rates among the sexes. Preschool children had the highest infection rate and the lowest infection rate. The infection rate of the multi-pest species was rare, accounting for 76.69% of all the parasites infected. Conclusion Affected by the ecological environment of the water area, it may promote the spread and spread of soil-borne nematode disease and paragonimiasis. By establishing monitoring points, strengthening health education and eliminating sources of infection, interventions can effectively reduce the prevalence of soil-borne nematodes and clonic parasites in water-receiving areas.