芗城区2011年国家级土源性线虫病监测报告

Report on soil-transmitted nematodiasis in national surveillance sites in Xiangcheng District in 2011

目的分析芗城区2011年土源性线虫感染及变化情况。方法2011年在芗城区天宝镇大寨村，采用改良加藤厚涂片法粪检肠道蠕虫卵（一粪三检）；对3～12周岁儿童加做透明胶纸肛拭法检测蛲虫；随机选择采集15户家庭的蔬菜园、果园及其它种植地的士襄标本进行钩蚴培养，每户1份，每份300g。结果共检查1022人，感染者146人，总感染率为14．29％，其中，钩虫感染者110人，感染率为10．76％；未发现蛔虫与鞭虫。检测儿童115人，蛲虫感染者36人，感染率为31．30％。检测蔬菜地土壤10份，分离钩蚴阳性6份；水果地土壤5份，分离钩蚴阳性4份，均鉴定为美洲钩蚴。结论2011年芗城区人群土源性线虫感染率与第一阶段5年监测结果相比呈下降趋势，儿童蛲虫感染仍维持在较高水平。

Objective To analyze the prevalence of soil-transmitted nematode infections in Xiangcheng District of Fujian Province in 2011. Methods Dazai village of Xiangcheng District of Zhangzhou City was se- lected in 2011. Kato-Katz method was used to detect the eggs of intestinal helminthes and cellophane tape was used to detect the eggs of pinworm among children age 3 to 12. Soil samples in the vegetable garden, orchard and other plantations were collected from 15 families and hookworm larvae in the soil were isolated, cultured and identified. Results A total of 1 022 persons were detected. 146 persons were infected with soil-transmitted nema- todes and the infection rate was 14.29%. The infection rate of hookworm was 10.76%（110/1 022）. Ascaris and Trichuris were not found. 115 children were detected among them 36 were found infected with pinworm, the infection rate was 31.3%. 10 soil samples from the vegetable garden were examined and 6 of them contained hookworm larvae. 5 soil samples from the orchard were examined and 4 of them contained hookworm larvae. All of them were identified as New-World hookworm, Conclusion Comparing with the results of the first phase of the five-year surveillance results, a decreasing trend of the soil-transmitted nematode infections was revealed in 2011, but a relatively high rate of hookworm infection in children was noticed.