四川西部藏区包虫病流行病学研究Ⅱ.牲畜及野生动物两型包虫病感染状况调查

目的　明确四川西部地区石渠县、甘孜县牲畜和野生动物两型包虫病 (Hydatidosis,HD)的感染状况 ,为进一步开展防治工作做好基线调查。方法　采取捕杀、剖检、作病理切片等。结果　检查牦牛 42 9头 ,其中 2 19头感染细粒棘球蚴 (Cysticechinococcus,Ce)感染率为 5 0 8% ,3头感染多房棘球蚴 (Alveolarechinococcus,Ae)感染率为 0 7%。在啮齿类动物中 ,黑唇鼠兔 (Ochotonacurzoniae)Ae感染率为 5 6 % (13/2 33) ,灰尾兔 (Lepusoiostolus)Ae感染率为 7 1% (1/14) ,松田鼠 (PitymysireneThomas)Ae感染率为 2 5 % (3/12 ) 检查小家鼠 (Musmusculus) 70只未发现感染。终末宿主调查中 ,犬体内发现两种棘球绦虫感染 ,其中细粒棘球绦虫 (Echinococcusgranulosus,Eg)感染率为 13 2 % (7/16 ) ;多房棘球绦虫(Echinococcusmultilocularis,Em)感染率 16 98% (9/16 ) ,未发现混合感染犬。藏狐 (Vulpesferrilata)的Em感染率为 44 4%(76 /171)。结论　调查显示在该地区存在着较广泛的动物两型包虫病流行

EPIDEMIOLOGICAL SURVEY ON HYDATIDOSIS IN TIBITAN REGION OF WESTERN SICHUAN II. INFECTION SITUATION AMONG DOMESTIC AND WILD ANIMALS

Aim To report the infection situation of two types of hydatidosis among domestic and wild animals in Shiqu and Ganzi counties in western Sichuan Province. Results 219(50 8%)out of 429 investigated yaks were infected with Cystic echinococcus (Ce),and 3 (0 7%) infected with Alveolar echinococcus (Ae).Among the rodents,the Ae infection rate of Ochotona curzoniae was 5 6% (13/233),of Lepus oiostolus 7 1% (1/14),and of Pitymys irene Thomas 25% (3/12) but no infections were found in 70 Mus musculus.The final host showed that among dogs,the infection rate of Echinococcus granulosus (Eg) was 13 2% (7/53)and E. Multilocularis (Em) 16 98% (9/53) but no mixed infections were found. The Em infection rate of Vulpes ferrilata reached 44 4% (76/171).Conclusion The results showed that the endemity of hydatidosis was widespread among animals in that region.