2006-2010年苏北地区土源性线虫病防治监测

Surveillance of soil-transmitted nematodiasis in northern Jiangsu Province from 2006 to 2010

目的观察江苏省苏北地区土源性线虫病防治效果。方法根据《江苏省土源性线虫病监测方案》要求,采用改良加藤厚涂片法和透明胶纸肛拭法检测土源性线虫感染率,应用平均发展速度法预测监测点未来感染率。结果经过5年防治,苏北地区土源性线虫感染率降至3.13%,均为轻度感染。其中蛔虫、钩虫、鞭虫和蛲虫感染率分别为0.77%、0.89%、1.49%和1.19%,总感染率呈下降趋势;平均发展速度法预测结果也显示土源性线虫感染率仍将进一步下降,但下降趋势有所减缓。结论苏北地区土源性线虫病已基本控制,应调整防治策略;同时继续做好监测和重点人群服药工作。

Objective To evaluate the control effect on soil-transmitted nematodiasis in surveillance sites of northern Jiangsu Province.Methods According to ＂The Monitoring Program on Soil-transmitted Nematodiasis in Jiangsu Province＂,the eggs of soil-transmitted nematodes were detected by the Kato-Katz technique and cellophane anal swab technique,and the infection rates were predicted by the horizontal average speed development method in the surveillance sites from 2006 to 2010.Results The overall infection rate of soil-transmitted nematodes declined to 3.13% and the intensities of the infections were mild in past 5 years in the northern Jiangsu Province,and the infection rates of Ascaris lumbricoides,hookworm,Trichuris trichiura and Enterobius vermicularis were 0.77%,0.89%,1.49 and 1.19%,respectively.The overall infection rates showed a downtrend.The predicted result also demonstrated that the future infection rates should keep a continuous downtrend,but the decreasing speed should be slower than before.Conclusion The infections of soil-transmitted nematodes in the northern Jiangsu Province have been controlled basically,and we should adjust the control strategy including surveillance and chemotherapy in the main risk population.