湖南省新宁县2006--2011年土源性线虫感染调查分析

Investigation and analysis of soil-transmitted nematodes infection in Xinning, Hunan, 2006 -2011

目的了解湖南省新宁县土源性线虫病流行规律，为湖南地区的土源性线虫病防治提供科学依据。方法2006--2011年，每年9—11月在新宁县高桥栗叶村进行调查，应用改良加藤厚涂片法查土源性线虫卵，透明胶纸肛拭法查儿童蛲虫卵；土壤监测采用改良饱和硝酸钠漂浮法，分别对虫卵进行检测与计算，调查污染情况。结果2006--2010年共监测5021人，蛔虫的感染率由2006年的6．78％降至2010年的0．70％；钩虫的感染率由2006年的2．29％降至2010年的0．30％；鞭虫的感染率在2006、2008、2009年均为0；蛲虫的感染率2006、2007年为0．70％、0．60％，2008、2009、2010年均为0。结论新宁县2006--2011年人群土源性线虫感染率呈下降趋势。

Objective To find the trend of soil-transmitted nematodes infection in Xinning, in order to provide scientific basis for eontroling the disease. Methods The investigation was carried out annually in Liye Village, Gaoqiao Town, Xinning County from September to November, 2006 to 2011. The number of soil- transmitted nematodes eggs were checked with Kato-Katz, Enterobius vermicularis eggs in child were examined with cellophane tape anal swab method. Results A total of 5 021 residents were examined from 2006 to 2010. The infection rate of aseariasis decreased to 0. 70% in 2010 from 6.78% in 2006, the infection rate of ancylostomiasis decreased to 0.30% in 2010 from 2.29% in 2006, trichuriasis was not detected in 2006, 2008 and 2009, the infection rate of enterobiasis was 0.70% , 0.60% in 2006 and 2007, but not detected in 2008, 2009 and 2010. Conclusion The infection rate of soil-transmitted nematodes in Xinning County declined from 2006 to 2011.