丽水市莲都区老竹镇土源性线虫感染现状调查

Investigation of soil-borne nematodes infection in Laozhu,Liandu district of Lishui in 2015

目的了解农村改水改厕后土源性线虫病流行现状和感染程度,为制订防治策略和预防措施提供依据。方法采用改良加藤厚涂片法对1 032名农民的粪便标本进行钩虫、鞭虫、蛔虫、蛲虫检测;计算每克粪便中各种类虫卵数（EPG）。此外,采用透明胶纸肛拭法检测200名3岁~4岁儿童蛲虫感染情况,并对结果进行统计分析。结果 2015年共检测1 032名农民,检出土源性线虫卵22人,总感染率为2.13%,均为钩虫感染,其中钩虫和鞭虫混合感染1人。男性土源性线虫感染率为2.38%,女性为1.89%。感染人群以65岁以上的农民为主,占阳性感染者的63.64%。200名儿童的蛲虫检测均为阴性。结论全面进行农村的改水改厕的工程以及农村的经济发展改变了个人卫生习惯,使农村土源性线虫感染率降低,尤其在改厕方面的作用更显著,钩虫病是莲都区主要的土源性线虫病,防治的重点人群是农村的老年人群。

Objective To understand the epidemic status and degree of infection of parasitic diseases after improved water supply and sanitation,so as to provide basis for formulating control strategy and prevention measures. Methods Fecal samples were collected from 1 032 residents for the detection of roundworms,hookworms,whipworms,or tapeworms using improved Kato- Katz thick smear method. The eggs per gram（ EPG） were calculated. In addition,tapeworms infection was conducted in200 children in 3- 4 years old using cellophane anal swab method,and the results were statistically analyzed. Results A total of 1 032 people were detected in 2015,22 persons were infected by soil borne nematode egg,with the total infection rate of2. 13%,who were all infected by hookworms. 1 person was mix- infected by hookworm and whipworm. Soil- borne nematodes infection rate of male was 2. 38%,higher than female（ 1. 89%）. Infected people were mostly over 65 years old,accounting for63. 64%. Pinworm was not detected in 200 children in kindergarten. Conclusion After several years of time to fully carry out improved water supply and sanitation in rural areas as well as the economic development of rural,the personal hygiene habits has changed,which leads to lower infection rates in rural geohelminthes,and in particular,the role of rebuilding sanitary toilets is more pronounced. Hookworm disease in Liandu rural is currently the main soil- borne nematodes infection. Focus groups for prevention is the rural elderly people.