M. Chinchilla

Publications90
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Citations1,007
Highly Influential Citations52
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Soil survival of toxoplasma oocysts in Kansas and Costa Rica.
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… Expand
Seroepidemiology of Toxoplasma gondii (Apicomplexa) in meat producing animals in Costa Rica.
A serologic screening for Toxoplasma gondii antibodies by IgG indirect fluorescent antibodies test (IgG-IFAT) was carried among 496 swine and 601 cattle serum samples from throughout Costa Rica, to… Expand
Presence of Cryptosporidium Oocysts in Fresh Vegetables.
In Costa Rica, a total of 640 samples from eight different vegetables used for raw consumption were analyzed for the presence of Cryptosporidium spp. oocysts, fecal coliforms, and Escherichia coli .… Expand
[Prevalence of Cyclospora sp., Cryptosporidium sp, microsporidia and fecal coliform determination in fresh fruit and vegetables consumed in Costa Rica].
The presence of Cyclospora sp., Cryptosporidium sp. and microsporidia and the levels of fecal coliforms were determined in lettuce, parsley, cilantro, strawberries and blackberries acquired in local… Expand
Seroepidemiology of Toxoplasma gondii (Apicomplexa) in meat producing animals in Costa Rica.
A serologic screening for Toxoplasma gondii Imtibodies by IgO indirect fluorescent antibodies test (IgOIFAT) was carried amoog 496 swine and 601 cattle serum samples from throughout Costa Rica, 10… Expand
Mediation of immunity to intracellular infection (Toxoplasma and Besnoitia) within somatic cells.
Antigen-treated lymphocytes from immune hamsters specifically protected not only macrophages, but also cultured fibroblasts and kidney cells infected with Toxoplasma gondii or Besnoitia jellisoni.… Expand
Determination of Toxoplasma gondii in several organs of cattle by carbon immunoassay (CIA) testing.
Samples of muscle, heart, liver and lung were tested for the presence of Toxoplasma gondii using mice as a biologic detector and the carbon immunoassay (CIA) for immunological diagnosis. In positive… Expand
Molecular systematics and phylogeography of Cebus capucinus (Cebidae, Primates) in Colombia and Costa Rica by means of the mitochondrial COII gene
We propose the first molecular systematic hypothesis for the origin and evolution of Cebus capucinus based on an analysis of 710 base pairs (bp) of the cytochrome c oxidase subunit II (COII)… Expand
[Seasonality of parasites and intestinal bacteria in vegetables that are consumed raw in Costa Rica].
In Costa Rica, a total of 640 samples from eight different vegetables used for raw consumption, were analyzed for the presence of intestinal parasites and fecal coliforms. Eighty samples of each… Expand
[Susceptibility of Sigmodon hispidus (Rodentia: Cricetidae) to Toxoplasma gondii (Eucoccidia: Sarcocystidae)].
Sigmodon hispidus, a cotton rat, was inoculated with tachyzoites or oocysts of Costa Rican strains of Toxoplasma gondii to demonstrate the resistance to this parasite, as compared with mice, hamster… Expand
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