山西省第3次人体重点寄生虫病现状调查报告

目的掌握山西省人体重要寄生虫病流行现状,为制定防制策略提供科学依据。方法根据全国统一调查方案,分层整群抽取78个农村调查点和7个城镇调查点,每个调查点调查人数不少于250人。改良加藤厚涂片法检查肠道蠕虫卵,试管滤纸培养法鉴定钩虫虫种,透明胶纸肛拭法检查3～6岁儿童蛲虫卵,直接涂片法查肠道原虫包囊或滋养体。结果本次调查农村调查点共调查19 500人,仅查出蛔虫、钩虫、鞭虫、蛲虫等土源性线虫,未查出华支睾吸虫、肠道原虫等其它虫种。土源性线虫阳性29例,总感染率为0.15%,其中蛲虫阳性26例,感染率为0.13%;蛔虫、钩虫(十二指肠钩虫)、鞭虫阳性各1例,感染率为0.01%。城镇调查点共调查1 750人,结果全部为阴性。结论本次调查与第2次寄生虫病调查(土源性线虫人群总感染率为5.67%)及2011年全省土源性线虫监测结果(人群土源性线虫总感染率为1.01%)相比,人群土源性线虫感染率显著下降。

Report on the status of the 3rd human important parasitic diseases investigation in Shanxi

Objective To understand present epidemic status of human important parasitic diseases in Shanxi Province. Methods According to unified methods formulated by national investigation scheme and stratified cluster random sampling,78 rural and 7 urban pilots were selected in Shanxi Province. The number of subjects investigated in individual pilot was defined over 250. Modified Kato-Katz thick smear was applied to detecting eggs of intestinal helminthes. Tube fecal culture method was used to identify species of hookworm．Enterobius eggs were detected in children aged 3-6 years using adhesivetape technique. The cyst and trophozoite of intestinal protozoa were examined by method of direct smear. Results A total of 19 500 people in rural and 1 750 people in urban areas underwent the survey. And 29 people infected with soil-transmitted nematodes in rural area, total infection rates were 0.15%. Among them, 26(0.13%) were infected with pinworm, 1 each with arcaris, trichuris, and hookworm, the prevalence were 0.01% respectively. In urban area,no infected people found. Conclusion Total prevalence of soil-transmitted nematodes this time declined significantly compared with the infection condition of the second survey (5.67%) and in 2011(1.01%) on the status of important human parasitic diseases in Shanxi.