钉螺对不同宿主源性日本血吸虫毛蚴的易感性  

Susceptibilities of Oncomelania hupensis snails to Schistosoma japonicum mi-racidia from different hosts

作　　者：田月[1] 汪天平[2] 汪奇志[2] 吕大兵[2] 尹晓梅[2] 周莉[2] 王珍丽[2] 汪峰峰[2] 王玥[2] 章乐生[2] 

机构地区：[1]皖南医学院病原生物学教研室,芜湖241000 [2]安徽省血吸虫病防治研究所

出　　处：《中国血吸虫病防治杂志》2011年第4期446-448,共3页Chinese Journal of Schistosomiasis Control

基　　金：国家重大科技专项(2008ZXQ10004-011);安徽省卫生厅医学科学研究课题(09C223)

摘　　要：目的了解钉螺对不同终宿主源性日本血吸虫毛蚴的易感性差异。方法收集家兔、水牛和小白鼠排出的虫卵,孵出毛蚴,以毛蚴和钉螺5:1的比例感染同一地钉螺。同时设对照组,观察各组钉螺感染率、死亡率。结果实验组家兔、水牛和小白鼠排出虫卵孵出毛蚴感染钉螺,获得的阳性率分别为1.42%、8.67%和19.87%,钉螺死亡率分别为29.5%、13.5%和24.5%;对照组钉螺阳性率分别为2.63%、2.02%和11.66%,死亡率分别为24.0%、49.5%和18.5%。结论不同宿主源日本血吸虫毛蚴对钉螺易感性存在差异。Objective To understand the susceptibilities of Oncomelania hupensis snails to Schistosoma japonicum miracidia from different hosts.Methods The Schistosoma japonicum eggs from different hosts,such as rabbits,cattle and mice were collected.These eggs were incubated for miracidia,respectively.Each snail from the same site was exposed to 5 miracidia of Schistosoma japonicum from different hosts.The infected snails were fed in the laboratory for two months.Then all the snails were dissected and observed under the dissecting microscope in order to know the infection rate of snails.Results In the experiment group,the infec-tion rates of snails infected with miracidia from rabbits,cattle and mice were 1.42%,8.67% and 19.87%,respectively,the mortality rates were 29.5%,13.5% and 24.5%,respectively.However,the infection rates of snails in the control group were 2.63%,2.02% and 11.66%,respectively,and the mortality rates were 24.0%,49.5% and 18.5%,respectively.Conclusion The susceptibilities of Oncomelania snails to Schistosoma japonicum miracidia from 3 kinds of hosts are significantly different.

关 键 词：日本血吸虫 毛蚴 钉螺 易感性 

分 类 号：R383.24[医药卫生—医学寄生虫学]