Abstract
Toxoplasma gondii was isolated from the intestinal wall of an adult shorthorn cow. The cow had an antibody titer of 1:1,600 in the T. gondii agglutination test using formalin-fixed whole tachyzoites. The strain of the parasite designated CT-1 was lethal to mice. This is the first report of the recovery of viable T. gondii from a naturally infected cow in the United States.
MeSH terms
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Animals
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Antibodies, Protozoan / blood
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Cats
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Cattle
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Cattle Diseases / parasitology*
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Intestinal Diseases, Parasitic / parasitology
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Intestinal Diseases, Parasitic / veterinary
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Intestines / parasitology*
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Mice
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Toxoplasma / growth & development
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Toxoplasma / immunology
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Toxoplasma / isolation & purification*
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Toxoplasma / pathogenicity
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Toxoplasmosis, Animal / parasitology*