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Fetal Toxoplasma infection after oocyst inoculation of pregnant rats

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Abstract.

Six groups totalling 53 Wistar rats were fed 104 oocysts from one of six different Toxoplasma strains at 15 days of pregnancy. The overall transplacental transmission rate was 51%. This varied between 10% and 80%, dependent on the strain used. The strains of Toxoplasma which are more pathogenic for mice were transmitted transplacentally more frequently than the strains of intermediate or low pathogenicity. There were no statistically significant differences in the rate of congenital transmission of Toxoplasma in rats fed oocysts (present work) or cysts (previous work).

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Authors and Affiliations

  1. Laboratorio de Toxoplasmosis, Dpto. de Parasitología, Facultad de Veterinaria, Alberto Lasplaces 1550, Montevideo, Uruguay, , , , ,

    A. Freyre,  J. Falcón,  J. Venzal &  D. Morgades

  2. Laboratorio de Parasitología, Facultad de Química, Montevideo, Uruguay, , , , ,

    J. Mendez &  M. González

Authors
  1. A. Freyre
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  2. J. Falcón
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  3. J. Mendez
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  4. M. González
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  5. J. Venzal
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  6. D. Morgades
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Freyre, .A., Falcón, .J., Mendez, .J. et al. Fetal Toxoplasma infection after oocyst inoculation of pregnant rats. Parasitol Res 89, 352–353 (2003). https://doi.org/10.1007/s00436-002-0759-4

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  • DOI: https://doi.org/10.1007/s00436-002-0759-4

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