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Search: authors:"Sylvio Celso Gonçalves da Costa"

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Lankesterella alencari n. sp., a toxoplasma-like organism in the central nervous system of Amphibia (Protozoa, Sporozoa)

Lankesterella alencari n. sp. a Sporozoa that occur in the blood and CNS of the South American frog Leptodactylus acellatus is described. Since the tissue forms of this parasite have been previously reported as belonging to the genus Toxoplasma, we attempted in fection of 2 species of amphibia (Bufo marinus an dLeptodactylus ocellatus) with a Toxoplasma strain of human origen...

Imunoglobulinas na fase crônica da doença de Chagas

Since dibergent results were obtained by different authors about immunoglobulins concentration in sera from acute and chronic cases of Chagas disease, the problem was submited to statistical approach in field conditions in the endemic zone of Bambui, state of Minas Gerais, Brazil. Positives cases were considered in all individuals presenting evidences in parasitological...

Oral Outbreak of Chagas Disease in Santa Catarina, Brazil: Experimental Evaluation of a Patient’s Strain

Sylvio Celso Gonçalves da Costa (306130/2011-4) are senior researchers. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The

Immunopathological Studies of Leishmania amazonensis Infection in Resistant and in Susceptible Mice

Leishmania amazonensis infection was studied in mice to evaluate the evolution of leishmaniasis. The association of different methods, such as lesion kinetics, limiting dilution analysis, and immunohistochemistry, established different levels of susceptibility and resistance. Mice were arranged in 3 groups: susceptible (C57BL/ 10 and CBA), relatively resistant (DBA/2), and...

Leishmanial antigens in the diagnosis of active lesions and ancient scars of American tegumentary leishmaniasis patients

Pacheco**, Hooman Momen**, Sérgio G Coutinho***, Mauro Célio de Almeida Marzochi, Keyla Belizia Feldman Marzochi, Sylvio Celso Gonçalves da Costa*** Centro de Pesquisa Hospital Evandro Chagas-Fiocruz