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一、爱吃生、半生或醃渍水产品(如醉蟹)的人,为什么容易得中华枝睾吸虫病、姜片虫病和肺吸虫病?请将此三病的传染途径和流行病学作一补充说明。【答】1.中华枝睾吸虫病:成虫寄生于人的肝臟胆管内,虫卯经寄主的胆道及胆管到达小肠,然后随粪便排出。虫卵在水中被若干种淡水螺(第一中间寄主)吞食后,孵化发育,经过毛蚴、包蚴、雷蚴及尾蚴等几个阶段。尾蚴自螺体逸出后,遇有机会,即侵入鱼体(第二中间寄主),发育成为囊蚴,绝大部分囊蚴寄生在鱼肉内。如人们吃了未煮熟
First, eat raw, half-life or pickled aquatic products (such as drunk crab) people, why easy to get Chinese clonorchiasis, ginger and parasitic diseases? Please route the transmission of these three diseases and epidemiology Make a supplementary explanation. [Answer] 1.Chinese testosterone disease: adult parasites in the human bile duct, insect d 90 by the host bile duct and bile duct reach the small intestine, and then discharged with the feces. Egg in the water by a number of freshwater snails (the first intermediate host) swallowed after hatching, after the miracidia, including larvae, echinococcosis and cercariae several stages. Cercariae escaped from the snail body, in case of a chance that the invasion of fish (the second intermediate host), the development of metacercariae, the vast majority of metacercaria parasites in the fish. If people eat uncooked