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目的了解贵阳市小学生肠道线虫感染动态变化情况。方法每年选择4所小学800余名学生粪检,改良加藤法,虫卵计数。结果从1998一2007年,四所小学学生总感染率逐年分别为22.17%、20.23%、17.33%、23.02%、14.19%、9.27%、11.26%、7.90%、8.22%、7.80%,学校间比较每年均以城郊的茶店小学感染率较高。感染虫种以蛔虫为主,其次为鞭虫、钩虫。蛔虫感染率最高是1998年的24.64%、最低是2007年7.68%。钩虫仅在茶店小学学生查到。各虫种大多为轻度感染,仅蛔虫有少量重度感染。结论贵阳?小学生肠道线虫感染率近10年来呈现出明显的下降趋势。城郊小学生较城区小学生感染情况严重。应当继续加强学校的健康教育,并辅以有计划地药物驱虫工作,才能使感染状况进一步改善。
Objective To understand the dynamic changes of intestinal nematode infection in primary school students in Guiyang. Methods A total of more than 800 students from 4 primary schools were selected for faecal examination each year to improve the Kato method and egg count. Results From 1998 to 2007, the total infection rate of four primary school students was 22.17%, 20.23%, 17.33%, 23.02%, 14.19%, 9.27%, 11.26%, 7.90%, 8.22% and 7.80% The prevalence of Chadian Primary School in the suburbs is higher every year. Infection worms to roundworm, followed by whipworm, hookworm. The highest infection rate of roundworms was 24.64% in 1998 and the lowest was 7.68% in 2007. Hookworms only found in the tea shop primary school students. Most of the worms are mild infections, only a small number of roundworm infections. Conclusion The prevalence of intestinal nematode infection in primary school students in Guiyang has shown a significant downward trend in recent 10 years. Outskirt pupils than urban pupils infected in serious condition. Continued efforts should be made to strengthen the health education in schools, supplemented by planned drug de-worming work to further improve the status of the infection.