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目的探讨永川农村地区土源性线虫病流行现状与态势,评估防治效果,为制定防治计划提供依据。方法随机选择农村地区1个村1003人开展土源性线虫调查,在10户农户的庭院、客厅、厕所、菜园等地区采集土壤进行蛔虫虫卵检测。结果人群土源性线虫总感染率为22.43%(225/1003),12岁以下儿童蛲虫感染率为6.67%(3/45)。中老年农民是感染土源性线虫的高危人群(χ2=40.28,P<0.01),无明显家庭聚集性(χ2=3.54,P>0.05)。土壤中蛔虫卵阳性率为20%(8/40),土壤阳性户家庭成员感染率高于阴性户家庭成员感染率(χ2=8.11,P<0.01)。结论与永川区2000年土源性线虫分布调查相比,人群土源性线虫病总感染率虽有所下降,但感染率依然较高,仍是永川区的主要寄生虫病。
Objective To investigate the prevalence and trend of soil-borne nematodes in rural areas of Yongchuan, assess the effect of prevention and treatment, and provide the basis for making prevention and control plans. Methods 1003 people from 1 village in rural areas were randomly selected to carry out soil-borne nematode surveys. Soil samples were collected from 10 farms’ courtyards, living rooms, toilets and vegetable gardens to detect Ascaris eggs. Results The total infection rate of soil-borne nematodes was 22.43% (225/1003) in humans and 6.67% (3/45) in children under 12 years of age. Middle-aged and elderly peasants were at high risk of infection with soil-borne nematodes (χ2 = 40.28, P <0.01), and no significant family aggregation (χ2 = 3.54, P> 0.05). The positive rate of Ascaris eggs in soil was 20% (8/40), and the infection rate of family member positive in soil was higher than that of negative family member (χ2 = 8.11, P <0.01). Conclusion Compared with the investigation of the distribution of soil-borne nematodes in Yongchuan in 2000, the total infection rate of soil-borne nematode disease in the population decreased, but the infection rate was still high, which was still the main parasitic disease in Yongchuan.