江苏省肠道线虫感染现状与分析

目的了解并分析江苏省人群肠道线虫感染现状,为制定防治方案提供依据。方法2004年在1990年全国人体寄生虫分布调查的抽样点中,继续选择有代表性的13个县39个点,按《全国人体重要寄生虫病现状调查实施细则》的方法和要求进行调查。结果人群总感染率为3.88%,较2002年全国人体重要寄生虫病流行现状调查的7.31%下降了46.92%。钩虫、蛔虫、鞭虫感染率分别为1.14%、1.06%和1.73%,其中轻度感染占91.75%,多重感染占9.40%。苏南地区钩虫感染者占78.06%,苏北地区蛔虫和鞭虫感染者占89.03%。12岁以下儿童蛲虫感染率为3.72%。结论江苏省人群肠道线虫感染率已降到较低水平,各地感染率的差异与防治、社会经济和文化卫生水平有关,苏北地区仍是全省防治工作重点,学龄前儿童和中老年务农者是高危人群。今后应根据不同地区的防治工作重点制定分类指导的防治对策和方案。

Current status and analysis of intestinal nematode infection in Jiangsu Province

Objective To understand and analyse the epidemic status of human intestinal nematode infection in Jiangsu Province, so as to provide basis for making control measures. Methods The typical thirty-nine spots in thirteen counties among the sampling spots of National Investigation on Distribution of Human Parasites in 1990 were selected and investigated according to the Methods of National Investigation Scheme on Human Principal Parasites in 2004. Results The total prevalence was 3.88%, which decreased by 46.92% compared with the investigation in 2002 (7.31%). The infection rates of hookworm, Ascaris and Trichuris were 1.14%, 1.06% and 1.73%, respectively, and the proportion of light infection was 91.75%. The rate of multiple infections was 9.40%. The proportion of hookworm infection was 78.06% in Southern Jiangsu and the proportion of Ascaris or Trichuris was 89.03% in Northern Jiangsu. The infection rate of Enterobius was 3.72% among children aged less than 12 years. Conclusions The prevalence of intestinal nematodes has decreased to lower level in Jiangsu Province. The difference of prevalence in different regions has a relationship with the disease control and social-economic, culture and health levels. The principal control work should be still put in the northern part of Jiangsu Province. The preschool children and the middle and old age peasants are high-risk population. The different control measures should be taken in accordance with the situation of different regions in the future.