Epidemic analysis of Cionorchis sinensis infection in Dalian city

Objective To analysis breeding ground of Clonorchis sinensis and explore the epidemiology basis lead to Clonorchis sinensis. Methods Through investigating fresh-water fishes infected by liver fluke worms in Fuzhou town to Dalian area,its epidemiology was analysed. Results Metacercaria had existed in the gills and muscular tissue of the fish from the stream flow of Fuzhou town and the fishponds of farmers.After inoculation for 2 months,some eggs from cat′s feces were found,at the same time,some adults from cat′s hepatic ducts and bile ducts were obtained.According to identifying of etiology,these adults were confirmed to Clonorchis sinensis. Conclusion Fuzhou town existed breeding ground of Clonorchis sinensis.Improving eating habits and strengthening health propaganda were significant means of controling the infection and dissemination of clonorchiasis.