Toxoplasmosis - a waterborne zoonosis

被引:448
作者
Dubey, JP [1 ]
机构
[1] USDA ARS, Anim Parasit Dis Lab, Anim & Nat Resources Inst, BARC E, Beltsville, MD 20705 USA
关键词
Toxoplasma gondii; toxoplasmosis; oocyst; pathogenesis; biology; diagnosis; epidemiology;
D O I
10.1016/j.vetpar.2004.09.005
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Humans become infected with Toxoplasma gondii mainly by ingesting uncooked meat containing viable tissue cysts or by ingesting food or water contaminated with oocysts from the feces of infected cats. Circumstantial evidence suggests that oocyst-induced infections in humans are clinically more severe than tissue cyst-acquired infections. Until recently, water-borne transmission of T. gondii was considered uncommon but a large human outbreak linked to contamination of a municipal water reservoir in Canada by wild felids and the widespread infection by marine mammals in the USA provide reasons to question this view. The present paper reviews information on the biology of oocyst-induced infections of T. gondii in humans and animals and examines possible importance of transmission by water. Published by Elsevier B.V.
引用
收藏
页码:57 / 72
页数:16
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