Epidemiological survey on hydatidosis in Tibetan 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.