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Rev. cuba. med. trop ; 50(2): 100-104, Mayo-ago. 1998.
Article in Spanish | LILACS | ID: lil-629283

ABSTRACT

Se introdujo la técnica de la reacción en cadena de la polimerasa para la caracterización intratípica de Poliovirus. Se usaron cebadores que sólo promueven la ampliación de las cepas vacunales de Sabin, comprobada por corrida electroforética de los productos de ADN amplificados (Sabin 1-97 pb, Sabin 2-71 pb, Sabin 3-44 pb) y cuya especificidad se verificó satisfactoriamente. Se estudiaron por esta técnica 23 cepas cubanas de Poliovirus aisladas e identificadas en el Laboratorio de Enterovirus del Instituto de Medicina Tropical "Pedro Kourí" de 1993 a 1994, y todas resultaron ser del tipo vacunal. Se observó cómo el Poliovirus vacunal de Sabin puede ser causa de meningoencefalitis viral como complicación neurológica más leve. Este estudio aportó una evidencia más a favor de la no circulación del Poliovirus salvaje en Cuba.


The polimerase chain reaction techniques was introduced for the intratypic characterization of Poliovirus. Primers were used only to promote the amplification of the Sabin vaccine strains proved by electrophoretic run of the amplified DNA products (Sabin 1 - 97 pb, Sabin 2 - 71 pb, Sabin 3 - 44 pb) and whose specificity was satisfactorily verified. 23 Cuban poliovirus strains isolated and identified at the Laboratory of Enterovirus of the "Pedro Kourí" Tropical Medicine Institute from 1993 to 1994 were studied by this technique. All of them were of the vaccine type. It was observed how the Sabin vaccine poliovirus may be the cause of viral meningoencephalitis as a milder neurological complication. Tghis study provided one more evidence about the non circulation of the wild poliovirus in Cuba.


Subject(s)
Humans , Poliovirus/classification , Polymerase Chain Reaction/methods , Base Sequence , Molecular Sequence Data , Oligonucleotide Probes , Poliovirus/genetics , Poliovirus/isolation & purification , Polymerase Chain Reaction/statistics & numerical data , RNA, Viral/genetics
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