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Journal Article

Toxoplasma gondii: The Oocyst, Sporozoite, and Infection of Cultured Cells

Harley G. Sheffield and Marjorie L. Melton
Science
New Series, Vol. 167, No. 3919 (Feb. 6, 1970), pp. 892-893
Stable URL: http://www.jstor.org/stable/1728440
Page Count: 2

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Topics: Oocysts, Sporozoites, Infections, Feces, Cats, Lizards, Mice, Kidney cells, Cultured cells, Parasites
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Abstract

The infective form of Toxoplasma gondii found in cat feces is an oocyst which, when sporulated, resembles that of the genus Isospora in having two sporocysts. Sporozoites obtained by artificial excystation of the oocyst are infective for monkey kidney cell cultures. Ultrastructural characteristics of sporozoites resemble those seen previously in proliferative stages of Toxoplasma gondii.

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