鄂西南地区居民并殖吸虫病血清流行病学调查

目的了解鄂西南并殖吸虫病流行区人群并殖吸虫感染现状。方法对鄂西南4个山区县中12个自然村长住居民采静脉血1．5～2ml，用酶联免疫吸附实验（ELISA），检测血清中并殖吸虫特异性抗体（IgM）。结果ELISA检测血清5255人（份），IgM阳性81人（份），阳性检出率为1．54％；其中男性阳性率为1．62％（38／2350）、女性阳性率为1．48％（43／2905），12岁以下儿童阳性率最高为2．16％（28／1298），中学生和农民阳性率分别为1．82％和1．35％。对检出的全部阳性血清和部分阴性血清进行了复测，复合率为97．21％。结论鄂西南4个县（区）居民并殖吸虫隐性感染依然存在；不能排除并殖吸虫对当地居民的潜在危害。

Seroepidemiological analysis of paragonimiasis among residents in southwestern Hubei province

Objective To investigate the current situation of paragonimus infection among the people who live in the epidemic area of southwestern Hubei province, the seroepidemiological analysis on paragonimiasis among residents from four mountainous towns and twelve natural villages in southwestern Hubei province was developed. Methods 1.5-2.0ml of venous blood was taken to detect the paragonimus IgM in the serum by applying ELISA. Results 5255 serum samples were analyzed by ELISA, of which 81 were positive, positive rate 1.54%. The positive rates in male and female were 1.62 % (38/2350) and 1.48% (43/2905) respectively. The highest positive rate was in the group of children under 12, 2.16% (28/1298). The positive rates in high school students and farmers were 1.82% and 1.35% respectively. All the positive serum samples and some negative serum samples from each area were retested, the recombination rate was 97.21%.Conclusion The infective rate of the paragonimus epidemic area in southwestern Hubei province, has declined obviously after years of control, however, the result indicates that the inapparent infection still exists. Although most of the positive people do not show clinical symptoms or physical signs, the potential danger of paragonimus should not be neglected.