【摘要】 目的了解河南省人体土源性线虫感染现状。方法根据《全国土源性线虫病监测方案》要求选点,确定监测人群,采用改良加藤厚涂片法查粪便虫卵,透明胶纸肛拭法查12岁以下儿童蛲虫卵。改良饱和硝酸钠漂浮法检查土样中的虫卵。结果在淮阳、栾川和封丘3县共调查3 041人,土源性线虫总感染率为2.63%(80/3041),较河南省人体重要寄生虫病现状调查时的土源性线虫感染率9.53%下降72.40%。其中检出蛔虫卵67例,感染率为2.20%,轻、中度感染者分别占85.07%和14.93%;检出钩虫卵14例,感染率0.46%,轻、中、重度感染者分别占85.71%、0和14.29%。有2人感染2种肠道寄生虫,占2.50%。肛拭法检测12岁以下儿童251人,蛲虫卵阳性32人,感染率12.74%。对30户居民菜园、厕所周边、庭院、厨房的120份土样进行检查,1份检出蛔虫卵,阳性率0.83%。结论河南省人体土源性线虫感染率显著下降。更多还原

【Abstract】 Objective To understand the status of infection of soil-transmitted nematodes in Henan Province.MethodsSurveillance sites and target populations were selected based on China’s National soil-transmitted nematode infection surveillance program.Eggs of intestinal nematodes were examined by the Kato-Katz technique.A transparent adhesive tape test was used to look for Enterobius vermicularis in children under 12 years of age.A modified floatation test with saturated sodium nitrate was used for egg detection in soil samples.Results Subjects were 3 041 individuals from Huaiyang,Fengqiu,and Luanchuan Counties.The total rate of infection with soil-transmitted nematodes was 2.63%(80/3 041),indicating a decrease of 72.40% from 9.53% in 2004.Of the samples,67 were positive for Ascaris lumbricoides,indicating an infection rate of 2.20%.The percentages of mild infection,moderate infection and severe infection were 85.07%,14.93% and 0,respectively.14 positive samples hookworms were found,the infection rate was 0.46%.Rates for mild,moderate,and severe infections were 85.71%,0,and 14.29%,respectively.Samples from 2 individuals were found to have 2 species of parasites,accounting for 2.50% of all positive samples.The transparent adhesive tape test identified samples from 251 children under 12 as positive for E.vermicularis,indicating an infection rate of 12.74%.Of 120 soil samples from gardens,around bathrooms,courtyards and kitchens of 30 households,one was positive for eggs of A.lumbricoides,indicating a positive detection rate of 0.83%.Conclusion The rate of soil-transmitted nematode infection has decreased significantly in Henan Province.更多还原