Abstract:

Objective To understand the transmission of human parasites in Qushui Village，Yangqing Town，Suixi County， Zhanjing City，Guangdong Province. Methods The direct stool smear，floatation，Kato?Katz technique，and hookworm larva cul? ture were used for the parasite infections. The questionnaire survey was applied for the hazards of parasites. The dissections on rats and snails were used for Angiostrongylus cantonensis infection. Results Five parasites were found and the total infection rate was 10.75%. The infection rates of hookworm（Necator americanus），Ascaris lumbricoides and Trichuris trichiura were 6.07%，1.87% and 1.87%，respectively，and the infection rates of Enterobius vermicularis and Tyroglyrhus farinae were both 0.47%. The infec? tions were not correlated with the career and age but preferred to males. The densities of infections were slight. The rate of dermati? tis caused by hookworm larvae was 69.23% . The infection rates of Angiostrongylus cantonensis were 16.66%，13.04% and 10.00%，respectively in rats，Achatina fulica and Ampularum crossean. Conclusion The main species of human parasites are nematodes，with hookworm predominately，in Qushui Village，Suixi County. This area is the natural foci of Angiostrongylus canto? nensis.

Key words: Human parasite；Epidemiological survey； Natural focus； Zhanjiang City

摘要：

目的 了解广东省湛江市遂溪县洋青镇曲水村人体寄生虫病流行与危害情况。 方法 采用生理盐水直接涂片法、 饱和盐水浮聚法、 改良加藤厚涂片法和试管滤纸钩蚴培养法检查人体寄生虫感染情况。采用询问登记、 填写调查表方式， 了解寄生虫病的危害情况。解剖检查褐家鼠、 福寿螺广州管圆线虫感染情况。 结果 检出钩虫、 蛔虫、 鞭虫、 蛲虫和粗脚粉螨5种寄生虫， 总感染率为10.75%。钩虫感染率为6.07%， 蛔虫和鞭虫均为1.87%， 蛲虫和粗脚粉螨均为0.47%。感染率男性高于女性， 与职业和年龄分布无关。感染度多以轻度为主。钩虫感染者钩蚴性皮炎发生率为69.23%， 虫种为美洲钩虫。鼠类、 褐云玛瑙螺和福寿螺广州管圆线虫感染率分别为16.66%， 13.04%和10.00%。 结论 遂溪县曲水村分布虫种主要为线虫， 以钩虫为主； 为广州管圆线虫病的自然疫源地。

关键词: 人体寄生虫； 流行病学调查； 自然疫源地； 湛江市