陕西省2006年土源性线虫感染现状分析

目的分析陕西省人群土源性线虫感染的分布现状，为制定防治对策提供依据。方法在陕南、陕北和关中采用分层整群抽样方法，对抽中的村（点）自然人群进行调查，分病种进行病原学检查，并进行统计分析。结果共调查7726人，土源性线虫感染率为18．86％，其中蛔虫、蛲虫、鞭虫、钩虫感染率依次为15．87％、11．46％、0．82％、0．04％；蛔虫感染度构成为轻度感染占97．74％、中度占1．60％、重度占0．66％；鞭虫感染度构成为轻度占88．89％、中度占7．41％、重度占3．70％。结论现陕西省人群土源性线虫感染率与1992年调查结果比较显著下降，感染病例主要分布在农村和中小学校并与文化程度高低关系密切，改善农村居民饮水环境及改变个人生活卫生习惯仍是预防控制人群寄生虫病感染的主要措施。

Analysis on the infection status of soil-transmitted nematodes in Shanxi Province in 2006

Objective To analyze the distribution status of soil-transmitted nematodes infection for prevention and treatment. Methods The inquiry field test and grade random sampling were emplyed on a group of people naturally selected in Shanxi Province. The people were examined through pathogen test and statistical diagnosis. Results A total of 7 726 people were investigated. Soil-transmitted nematodes infection rate was 18.86%. Ascaris, enterobius, trichuris, and hookworm was 15.87%, 11.46%, 0.82 %, and 0.04 % respectively. The intensity of ascaris infection was 97.74 %, 1.60 %, and 0.66 % respectively in light, moderate, and serious conditions, and that of triehuris infection was 88.89%, 7.41%, and 3.70% respectively in light, moderate, and serious conditions. Conclusions Soil-transmitted nematodes infection rate is lower than that in 1992. Its cases are mainly distributed in rural areas and schools, closely related to education level. Improving water-drinking conditions and personal hygiene is still key to the prevention and control of the infections.