2010年大足县土源性线虫感染调查结果分析

摘要

Objective To learn about the epidemiological characteristics of Geohelminthes in dazu,chongqing for the prevention and control.Methods 4 villages as monitoring points were selected from the north,the south,the east and the west of Dazu county.Each point collected faeces more than 500 to examine helminth eggs with Kato-Katz,and examine pinworm eggs with anal swab method for children between 3-12 years old.Results Samples from 2 107 peoples were examined.3 kinds of geohelminthes was examined:roundworm,hookworm and pinworm.244 subjects had geohelminthes infection.The infection rate was 11.58％.The roundworm infection rate was 1.42％.Gender difference in roundworm was not observed(x2 =0.62,P＞0.05).The hookworm infection rate was 9.07 ％.Gender difference in hookworm was not observed(x2 =0.002,P＞0.05).The pinworm infection rate was 5.68 ％ between 3-12 years old children.Conclusion The infection rate of geohelminthes is low in Dazu.%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2107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(x2=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(x2=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.