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目的明确万州当前农村地区人群土源性线虫病感染状况,为寄生虫病防治提供科学依据。方法应用多阶段分层整群抽样方法从万州42个农村镇乡按照东南西北随机抽取4个村作为调查点,用改良加藤厚涂片法查蛔虫、钩虫、鞭虫、肝吸虫虫卵,用透明胶纸法查蛲虫卵,每个调查点调查人数不得少于500人。结果共检出5种土源线虫感染;总感染率为15.88%(327/2 059);蛔虫、钩虫、蛲虫、鞭虫、肝吸虫的感染率依次为10.93%(225/2 059)、6.41%(132/2 059)、2.34%(9/383)、1.75%(36/2 059)、0.19%(4/2 059)。壤渡镇感染率最高为23.40%(117/500),而分水镇最低10.16%(51/502)。20岁以上年龄组人群土源性线虫感染率最高,虫卵总检出率为18.67%(289/1 548);其次为3~6岁年龄组人群虫卵检出率为10.00%(16/160);最低为13~19岁年龄组人群,其检出率3.15%(4/128)。结论万州区人群土源线虫总感染率15.88%介于全国中度流行区感染率水平,应加强农村地区的改水改厕工作,强化学前儿童及中小学生等目标人群的寄生虫病防治知识的普及,对重点人群每年进行驱虫治疗。
Objective To determine the prevalence of soil-borne nematodes in rural areas of Wanzhou at present and to provide a scientific basis for the prevention and treatment of parasitic diseases. Methods A multistage stratified cluster sampling method was used to select 4 villages in 42 rural villages and townships in Wanzhou as an investigation point. The eggs of roundworm, hookworm, whipworm, Transparent adhesive tape law check eggs, the number of investigators at each survey shall not be less than 500 people. Results Five soil-borne nematode infections were detected. The total infection rate was 15.88% (327/2 059). The infection rates of roundworm, hookworm, pinworm, whipworm and fluke were 10.93% (225/2 059) 6.41% (132/2 059), 2.34% (9/383), 1.75% (36/2 059), 0.19% (4/2 059). The highest infection rate of soil-crossing town was 23.40% (117/500), while the minimum water-cut town was 10.16% (51/502). The highest incidence of soil-borne nematodes in the population over the age of 20 was 18.67% (289/1 548), followed by 10.00% (10.00%) in the age group of 3-6 years old 160). The lowest was 13 ~ 19 years old group, the detection rate was 3.15% (4/128). Conclusion The total infection rate of soil-borne nematodes in Wanzhou District is 15.88%, which is between the infection rates of moderate endemic areas in the country. Water-based toilets should be strengthened in rural areas so as to strengthen the prevention and control of parasitic diseases among the target groups such as preschool children and primary and secondary school students The popularity of de-worming treatment of key populations every year.