桐乡市人体重要寄生虫感染调查分析

Analysis of human parasitic infection investigation in Tongxiang

目的了解桐乡市人体重要寄生虫病感染情况,掌握流行动态和流行规律,评估防治效果。方法采用改良加藤厚涂片法检查肠道蠕虫卵,试管滤纸培养法鉴别十二指肠钩虫和美洲钩虫,碘液直接涂片法检查肠道原虫,儿童采用透明胶纸肛拭法外加调查蛲虫卵。结果 1989年、1997年和2015年人体肠道寄生虫总感染率分别为58.62%、11.81%、0.40%,每次调查感染率较前一次均有大幅下降,各年份之间寄生虫感染率差异有统计学意义(χ2=1 320.39,P<0.01)。感染线虫、原虫及绦虫的构成比分别为87.86%、11.94%及0.21%,人群感染以线虫为主。感染的虫种数量和多重感染率也逐次减少。结论由于社会经济发展,农村普及改水改厕,农业机械化程度提高和种植业结构的调整,并采取以集体驱虫为主的综合性防治措施,桐乡市人体寄生虫感染已大幅度降低。

Objective To understand the human parasitic disease infection in Tongxiang,to grasp the popular dynamic and popular rules,in order to evaluate the control effect. Methods Intestinal worm was examined by modified Kato- Kotz technique,duodenal hookworm and American hookworm were discriminated by paper tube culture,intestinal protozoa was detected by iodine direct smear examination. The children were examined for pinworm by cellophane swad method. Results The overall infection rates of intestinal parasites were 58. 62%,11. 81%,0. 40% in 1989,1997 and 2015,and every survey showed down-trend on the infection rate than the former survey,with the differences of parasitic infection rates statistically significant（ χ2= 1320. 39,P 〈0. 01）. The ratio of nematodes,protozoa,and tapeworms were 87. 86%,11. 94% and 0. 21%. People were infected with nematodes mainly. The number of insect species infection and the infection rates of multiple sequential decreased.Conclusion Since the social and economic development,populization of rural water and sanitation,the improvement of agricultural mechanization and the adjustment of farming structure,and the comprehensive preventive measures which were based on collective deworming,human parasitic infection has significantly decreased in Tongxiang.