闽江流域部分地区并殖吸虫第二中间宿主溪蟹感染情况调查  

Investigation on the second intermediate host of Paragonimus and its infection in some areas of Minjiang River Basin

作　　者：江典伟[1] 谢汉国[1] 林陈鑫[1] 罗鋆[2] 程由注[1] JIANG Dian-wei;XIE Han-guo;LIN Chen-xin;LUO Jun;CHENG You-zhu(Fujian Provincial Center for Disease Control and Prevention,Fuzhou 350001,Fujian Province,China;Zhangzhou Center for Disease Control and Prevention)

机构地区：[1]福建省疾病预防控制中心,福建福州350001 [2]漳州市疾病预防控制中心

出　　处：《热带病与寄生虫学》2022年第5期245-248,共4页Journal of Tropical Diseases and Parasitology

基　　金：国家寄生生物种质资源库(平台-TDRC-22)。

摘　　要：目的 调查闽江流域部分地区并殖吸虫第二中间宿主溪蟹囊蚴感染情况,为闽江流域并殖吸虫防治提供依据。方法 在闽江上游、上游周边和闽江中段等3个区域设置调查点,开展并殖吸虫第二中间宿主溪蟹囊蚴感染情况调查,鉴定所捕获溪蟹,双筛法收集囊蚴,镜检后计算溪蟹囊蚴感染率、感染度和感染指数。结果 捕获溪蟹595只,囊蚴感染率为36.81%,闽江上游、上游周边及闽江中段3个区域溪蟹并殖吸虫囊蚴感染率分别为54.93%(78/142)、44.03%(59/134)、25.71%(82/319),不同区域溪蟹感染率差异有统计学意义(χ~2=39.96,P<0.05)。总体感染指数为5.90,3个区域感染指数分别为13.47、7.80、2.17,均为高度风险疫源地。查获溪蟹8种,除沈氏华南溪蟹未检出囊蚴外,其余7种均有感染,其中将乐华溪蟹和尤溪博特溪蟹感染率较高,分别为65.25%(77/118)和64.58%(31/48);不同蟹种感染率差异有统计学意义(χ~2=95.86,P<0.05)。共检出囊蚴3种,分别为卫氏并殖吸虫、斯氏并殖吸虫和三平正并殖吸虫囊蚴。结论 闽江流域部分地区溪蟹并殖吸虫感染率较高,应引起重视并采取有效措施预防人群的感染。Objective To investigate the second intermediate host of Paragonimus and its cysticercosis infection in some areas of Minjiang River Basin,so as to provide evidence for the control of Paragonimus in the basin.Methods Investigation on the second intermediate host of Paragonimus and its cysticercosis infection was carried out in the villages in the upper reaches,around the upper reaches and some areas in the middle of Minjiang River.The stream crabs captured were identified,from which the metacercariae were collected using double screen method,and microscopically examined to calculate the infection rate,infection degree and infection index of crab.Results 595 stream crabs were captured.The total infection rate of metacercariae was 36.81%,and the infection rate was 54.93%(78/142),44.03%(59/134) and 25.71%(82/319) in the villages in the upper reaches,around the upper reaches and some areas in the middle of Minjiang River.The difference was significant in the three areas (χ~2=39.96,P<0.05).The overall infection index was5.90,and the infection rate of metacercariae was 13.47,7.80 and 2.17,respectively for the three areas where were foci of high risks.Eight species of stream crabs were caught,in which 7 species were infected except Huananpotamon sheni.The infection rate was the highest in Sinopotamon jianglense (65.25%,77/118) and B.youxiense (64.58%,31/48).The difference was significant among the crab species (χ~2=95.86,P<0.05).Three species of metacercaria of Paragonimus(Paragonimus westermani,P.skrjabini and Euparagonimus cenocopiosus) were microscopically identified.Conclusion The infection rate of Paragonimus appears relatively higher in some areas of Minjiang River basin,which should call our attention,and effective measures be taken to prevent and control the infection in population.

关 键 词：并殖吸虫 囊蚴 溪蟹 闽江流域 福建省 

分 类 号：R383.23[医药卫生—医学寄生虫学]