Pulsed-field gel electrophoresis, virulence determinants and antimicrobial susceptibility profiles of type Ia group B streptococci isolated from humans in Brazil

Memórias do Instituto Oswaldo Cruz

Ana Beatriz De A Corrêa¹  Ivi Cristina M De Oliveira¹  Tatiana De Ca Pinto¹  Marcos C De Mattos¹  Leslie C Benchetrit¹ 

[1] ,Universidade Federal do Rio de Janeiro Centro de Ciências da Saúde Instituto de MicrobiologiaRio de Janeiro RJ ,Brasil

关键词: group B streptococci;    pulsed-field gel electrophoresis;    polymerase chain reaction;   

DOI  :  10.1590/S0074-02762009000400011

来源: SciELO

【 摘 要 】

Group B streptococci (GBS) infections occur worldwide. Although serotyping has been used for epidemiologic purposes, this does not accurately characterize enough members of a genetically heterogeneous bacterial population. The aims of this work were to evaluate the genetic diversity of 45 type Ia GBS strains isolated in Brazil by pulsed-field gel electrophoresis as well as to evaluate antimicrobial susceptibility profiles and identify virulence genes. Twenty-four strains were assigned to cluster A. All strains under study contained the hylB and scpB genes. The bca gene was detected in only 10 strains and none of the streptococci carried the bac gene. Thirty-nine strains were resistant to tetracycline.

【 授权许可】

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