Mechanical transmission of Toxoplasma gondii oocysts by dogs
Mechanical transmission of Toxoplasma gondii oocysts by dogs
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DOI：
10.1016/s0304-4017(97)00048-4
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发表时间：
1997-12-15
影响因子：
2.6
通讯作者：
Blagburn, BL
中科院分区：
文献类型：
--
作者：
Lindsay, DS;Dubey, JP;Blagburn, BL
研究人员进行了两项实验，以确定狗是否会在摄入猫粪便或在含有卵囊的猫粪便中滚动后机械地传播刚地弓形虫。在第一个实验中，给两只狗喂食带有孢子的弓形虫卵囊；在接种后2天，狗粪便中存在有活力的孢子卵囊。两只狗血清均转化为弓形虫，但未出现弓形虫病的临床症状。实验二：将无孢子卵囊置于狗的皮肤和皮毛上，并用皮毛剪报对小鼠进行弓形虫的生物检测。卵囊在狗毛上不生孢子。这项研究的结果支持了狗可能参与弓形虫向人类的机械传播的假设。(C) 1997爱思唯尔科学有限公司
Two experiments were conducted to determine if dogs could mechanically transmit Toxoplasma gondii after ingesting cat feces or by rolling: in cat feces containing oocysts. In the first experiment, two dogs were fed sporulated T. gondii oocysts; viable sporulated oocysts were present in dog feces for up to 2 days postinoculation (PI). Both dogs seroconverted to T. gondii but did not develop clinical signs of toxoplasmosis. In the second experiment, nonsporulated oocysts were placed on dog skin and fur, and fur clippings were bioassayed for T. gondii in mice. Oocysts did not sporulate on dog fur. The results of this study support the hypothesis that dogs may be involved in the mechanical transmission of T. gondii to humans. (C) 1997 Elsevier Science B.V.