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目的通过了解掌握线虫病流行规律及其影响因素,为制定性线虫病防治策略与措施提供科学依据。方法根据《全国土源性线虫病监测方案》的要求,选定河北省沧县风化店乡达子店村为监测点,共监测1564人,采用改良加腾厚涂片法和透明胶带肛拭法检测蛔虫、钩虫、鞭虫和蛲虫等土源性线虫虫卵。结果该监测点2006—2008年总样品数3677份,其中采集3周岁以上人群粪便标本3221份,肛拭法采集蛲虫片336份,外环境土壤标本120份。人群粪便标本中检出蛔虫卵7份,蛲虫卵2份,便标本总阳性率0.28%。其中蛲虫片336份检出蛲虫卵11份,阳性率3.27%。1564人连续检测3年线虫病总体感染率为1.28%(20/1564)。以上标本未检出其他虫卵。结论该监测点连续3年土源性线虫感染率波动在很低水平,随着感染者的治愈不断有新感染者出现。
Objective To understand the prevalence of nematode disease and its influencing factors and provide scientific evidence for the prevention and control strategies and measures of nematode disease. Methods According to the requirements of “National Soil Encephalitis Surveillance Program”, we selected up to a total of 1,564 people in Da Zidian Village, Weixian County, Cangxian County, Hebei Province. A total of 1564 people were monitored by using modified Tengtong thick smear method and transvaginal anal swab method Detection of roundworms, hookworms, whipworms and pinworms and other soil-borne nematode eggs. Results The total number of samples in this monitoring site from 2006 to 2008 was 3,677, of which 3,221 were collected from stool samples of people over the age of 3, 336 were collected from anal swabs and 120 were from the external environment. 7 samples of Ascaris stool were detected in the feces specimens of the crowd and 2 were screened. The total positive rate of stool specimens was 0.28%. Among them, 336 pieces of pinworm tablets detected 11 pieces of ovipositor eggs, the positive rate was 3.27%. The overall infection rate of 1564 consecutive 3-year nematode infections was 1.28% (20/1564). The above specimens did not detect other eggs. Conclusion The infection rate of soil-borne nematodes in this monitoring site fluctuated at a very low level for three consecutive years, and new infections were emerging as the infected patients cured.