2010年大足县土源性线虫感染调查结果分析

Analysis on Geohelminthes infection results of Dazu Cunty in 2010

目的为掌握大足县土源性线虫流行规律,预测流行趋势,为制订防治对策和评价防治效果提供科学依据。方法以县城为中心,在东、西、南、北各抽取1个镇,在每个镇随机抽取1个村作为调查点。每个调查点调查500人以上。收集粪便采用改良加藤厚涂片法(Kato-KatZ)作蛔虫、钩虫、鞭虫等寄生虫卵检测,3～12周岁儿童加做蛲虫肛拭子。结果共调查2 107人,感染土源性线虫主要为蛔虫、钩虫和蛲虫。共发现244人感染1种或1种以上寄生虫,总体感染率为11.58%。蛔虫总体感染率为1.42%,男、女蛔虫感染率比较差异无统计学意义(χ2=0.62,P>0.05)。钩虫总体感染率为9.07%,男、女钩虫感染率比较差异无统计学意义(χ2=0.002,P>0.05)。无鞭虫感染。3～12周岁儿童蛲虫感染率为5.68%。结论大足县土源性线虫的感染率处于较低的水平。

Objective To learn about the epidemiological characteristics of Geohelminthes in dazu,chongqing for the prevention and control.Methods 4villages as monitoring points were selected from the north,the south,the east and the west of Dazu county.Each point collected faeces more than 500to examine helminth eggs with Kato-Katz,and examine pinworm eggs with anal swab method for children between 3-12years old.Results Samples from 2 107peoples were examined.3kinds of geohelminthes was examined：roundworm,hookworm and pinworm.244subjects had geohelminthes infection.The infection rate was 11.58%.The roundworm infection rate was 1.42%.Gender difference in roundworm was not observed（χ^2=0.62,P〈0.05）.The hookworm infection rate was 9.07%.Gender difference in hookworm was not observed（χ^2=0.002,P〈0.05）.The pinworm infection rate was 5.68% between 3-12years old children.Conclusion The infection rate of geohelminthes is low in Dazu.