| molecular characterization and development of sarcocystis speeri sarcocysts in gamma interferon gene knockout mice. | the north american opossum (didelphis virginiana) is the definitive host for at least three named species of sarcocystis: sarcocystis falcatula, sarcocystis neurona and sarcocystis speeri. the south american opossums (didelphis albiventris, didelphis marsupialis and didelphis aurita) are definitive hosts for s. falcatula and s. lindsayi. the sporocysts of these sarcocystis species are similar morphologically. they are also not easily distinguished genetically because of the difficulties of dna e ... | 2015 | 26303093 |
| the south american opossum, didelphis marsupialis, from brazil as another definitive host for sarcocystis speeri dubey and lindsay, 1999. | the north american opossum, didelphis virginiana, is a definitive host for at least 3 species of sarcocvstis: s. falcatula stiles 1983, s. neurona dubey, davis, speer, bowman, de lahunta, granstrom, topper, hamir, cummings, suter 1991, and s. speeri dubey and lindsay 1999. in order to identify species of sarcocystis in the south american opossum, d. inarsupialis, sarcocystis sporocysts from the intestines of a naturally infected opossum (d. marsupialis) from brazil were fed to 4 gamma-interferon ... | 2000 | 11155929 |
| detection of antibodies against sarcocystis neurona , neospora spp., and toxoplasma gondii in horses from costa rica. | abstract serum samples from 315 horses from costa rica, central america, were examined for the presence of antibodies against sarcocystis neurona , neospora spp., and toxoplasma gondii by using the surface antigen (sag) snsag2 enzyme-linked immunosorbent assay (elisa), the nhsag1 elisa, and the modified agglutination test, respectively. anti- s. neurona antibodies were found in 42.2% of the horses by using the snsag2 elisa. anti- neospora spp. antibodies were found in only 3.5% of the horses by ... | 2011 | 21506839 |