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目的评价群体驱虫与改厕控制农村地区土源性线虫感染的效果。方法收集、整理丹阳市1998-2000年群体驱虫以及2001-2010年改厕资料,对两种措施控制土源性线虫感染的效果进行评价。2001-2010年采用改良加藤法(Kato-Katz)开展人群土源性线虫感染率监测,2010年分别选择2个改厕村和1个非改厕村开展卫生学评价。结果该市1998-2000年开展群体驱虫113万人次,人群感染率由40.82%降至1.10%,驱虫后的前5年(2001-2005年)人群感染率有所反弹(2.49%~4.81%),后5年(2006-2010年)逐步降低并保持在低水平(0.07%~0.52%),前后5年人群平均感染率差异有统计学意义(χ2=353.83,P<0.01),人群感染率与无害化户厕覆盖率呈负相关趋势(r=-0.83,P<0.01)。结论群体驱虫与改厕可有效控制农村地区人群土源性线虫感染率。
Objective To evaluate the effect of population de-worming and lavatory control on soil-borne nematodes infection in rural areas. Methods The data of deworming in community from 1998 to 2000 in Danyang City and the toilets in 2001-2010 were collected and evaluated. The effects of two measures to control soil-borne nematode infection were evaluated. In 2001-2010, Kato-Katz was used to monitor the population infection rate of soil-borne nematodes. In 2010, two latrine villages and one non-lavatory were selected for hygiene evaluation. Results In 1998-2000, the population of insect repellent was 1.13 million and the infection rate of the population was reduced from 40.82% to 1.10%. The infection rate in the first 5 years after deworming (2001-2005) rebounded (2.49% -4.81 %). After 5 years (2006-2010), the average infection rate gradually decreased and kept at a low level (0.07% -0.52%), and the difference was statistically significant (P <0.01) There was a negative correlation between infection rate and harmless household toilet coverage (r = -0.83, P <0.01). Conclusion Population de-worming and toileting can effectively control the infection rate of soil-borne nematodes in rural areas.