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Antígenos del paracoccidioides brasiliensis para las Reacciones serológicas

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Summary

The sera from normal subjects gave negative results with the following antigens used in the complement-fixation tests: 1) polysaccharide prepared according toFava Netto's technic; 2) a filtrate of shaked cultures followingAjello et al.'s technic; 3) an aqueous extract of mechanically disrupted yeast cells ofP. brasiliensis.

The sera from patients of S.A. blastomycosis gave positive c.f. tests with the three antigens with titer ranging from 1/20 to 1/5, 160. Antigen No 2 gave in 11/18 cases higher titers than the other antigens.

Immunodiffusion tests gave positive results with the antigen no 2. The sera from 10 cases of histoplasmosis gave cross reactions with the antigen No 3, in 5/10 cases with the antigen No 2 and in not any case with the antigen No 1.

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Bibliografía

  • Fava Netto, C. 1955. Estudos cuantitativos sobre a fixação do complemento na blastomicose Sulamericana com antigeno polisacaridico Tese. Medicina, São Paulo.

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  • Restrepo, M. A. 1966. La prueba de inmunodifusión en el diagnóstico de la Paracoccidioidomicosis. Sabouraudia,4 (4), 223–230.

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Authors and Affiliations

  1. Centro de Micología de la Cátedra de Microbiología y Parasitología de la Facultad de Medicina de la Universidas de Buenos Aires, Argentina

    Ricardo Negroni & Pablo Negroni

Authors
  1. Ricardo Negroni
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  2. Pablo Negroni
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Negroni, R., Negroni, P. Antígenos del paracoccidioides brasiliensis para las Reacciones serológicas. Mycopathologia et Mycologia Applicata 34, 285–288 (1968). https://doi.org/10.1007/BF02051852

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  • DOI: https://doi.org/10.1007/BF02051852

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