Soil survival of toxoplasma oocysts in Kansas and Costa Rica.

@article{Frenkel1975SoilSO,
  title={Soil survival of toxoplasma oocysts in Kansas and Costa Rica.},
  author={J. K. Frenkel and A. Ruiz and M. Chinchilla},
  journal={The American journal of tropical medicine and hygiene},
  year={1975},
  volume={24 3},
  pages={
          439-43
        }
}
Toxoplasma oocysts in cat feces were marked with a tracer amount of strontium-85 (85-SR), and were superficially buried simulating the natural disposal of feces by cats. Oocyst infectivity in Costa Rica was followed qualitatively and persisted for 1 year in three shaded sites, two moist, and one relatively dry site. Oocyst infectivity was quantitated in the Kansas deposit over a period of 18 months, including two winters. After initial mixing in soil, the level of infectivity remained fairly… Expand
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