长江江滩武汉段鼠类肝毛细线虫感染调查

Investigation of Capillaria hepatica infection in rodents from Wuhan section of Yangtze River marshland

目的了解长江江滩武汉段鼠类肝毛细线虫感染状况。方法选择长江江滩武汉江岸段,通过捕鼠夹捕获江滩野鼠,解剖肝脏肉眼观察肝脏病变和肝组织压片显微镜镜检虫卵。结果调查点依自然条件分6个片区,每个调查片区分别放置60个捕鼠夹,共360个,回收360个鼠夹,共捕获31只野鼠,平均鼠密度为8.61%,1只鼠检出肝毛细线虫,感染率为3.23%。31只野鼠中黑线姬鼠24只,褐家鼠3只,鼩鼱4只,感染率分别为0、33.3%和0。结论长江江滩武汉段鼠体有肝毛细线虫感染,为肝毛细线虫病的自然疫源地。

Objective To understand the prevalence of Capillaria hepatica in rodents from Wuhan section of the Yangtze River marshland. Methods Rodents were trapped in Jiang＇an section of Wuhan marshland of the Yangtze River. The livers of the rodents were examined for pathological changes by unaided eyes and the liver tissues were examined for the eggs of C. hepatica by a microscope. Results According to the natural conditions,the investigation was carried out in 6 survey areas. Each survey area was placed with 60 mousetraps,and all 360 mousetraps were recovered. A total of 31 rodents（rodent density 8.61%）were captured and examined,including 24 Apodemus agrarius,3 Rattus norvegicus,4 Sorex caecutiens,and C. hepatica eggs were found in 1 R. norvegicus（1/3）and not found in A. agrarius,and S. caecutiens. Conclusion This study has documented a prevalence of C. hepatica in rodents from Wuhan section of the Yangtze River marshland where is a natural epidemic focus of capillariasis hepatica.