Evaluation of clonality in enterococci isolated in Brazil carrying Tn1546-like elements associated with vanA plasmids

被引：12

作者：

Palazzo, ICV

Camargo, ILBC

Zanella, RC

Darini, ALC

机构：

[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, BR-14040903 Ribeirao Preto, SP, Brazil

[2] Inst Adolfo Lutz Registro, Bacteriol Lab, Sao Paulo, Brazil

来源：

FEMS MICROBIOLOGY LETTERS | 2006年 / 258卷 / 01期

关键词：

enterococci; vancomycin resistance; Tn1546; plasmid DNA;

D O I：

10.1111/j.1574-6968.2005.00181.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Fifty-one vancomycin-resistant enterococci samples isolated from different geographic regions in Brazil were studied. All the isolates harboured the vanA gene as demonstrated by PCR analysis, and in a majority of strains the gene was associated with a transferable plasmid of 70 kb. A single variant of the prototype Tn1546 associated with common transferable vanA-containing plasmids has spread among the enterococcal strains circulating in Brazil. The VanA element integrity in these enterococci strains and the different pulsed-field gel electrophoresis patterns suggest horizontal transmission of the vancomycin resistance transposon in Brazilian strains.

引用

页码：29 / 36

页数：8

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