Emergence of Klebsiella pneumoniae carrying the novel extended-spectrum β-lactamase gene variants blaSHV-40, blaTEM-116 and the class 1 integron-associated blaGES-7 in Brazil

被引:14
|
作者
Dropa, M. [1 ]
Balsalobre, L. C. [1 ]
Lincopan, N. [4 ]
Mamizuka, E. M. [2 ]
Cassettari, V. C. [3 ]
Matte, G. R. [1 ]
Matte, M. H. [1 ]
机构
[1] Univ Sao Paulo, Sch Publ Hlth, Publ Hlth Lab, Sao Paulo, Brazil
[2] Univ Sao Paulo, Sch Pharm, Sao Paulo, Brazil
[3] Univ Sao Paulo, Univ Hosp, Hosp Infect Control Comm, Sao Paulo, Brazil
[4] Univ Sao Paulo, Inst Biomed Sci, Dept Microbiol, Sao Paulo, Brazil
关键词
blaGES; blaSHV; blaTEM; class; 1; integron; extended-spectrum beta-lactamase; Klebsiella pneumoniae; Latin America; PSEUDOMONAS-AERUGINOSA; ESCHERICHIA-COLI; SOUTH-AMERICA; HOSPITALS; ARGENTINA; PREVALENCE; STRAIN; GES-1;
D O I
10.1111/j.1469-0691.2009.02944.x
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
A clinical Klebsiella pneumoniae isolate carrying the extended-spectrum beta-lactamase gene variants bla(SHV-40), bla(TEM-116) and bla(GES-7) was recovered. Cefoxitin and ceftazidime activity was most affected by the presence of these genes and an additional resistance to trimethoprim-sulphamethoxazole was observed. The bla(GES-7) gene was found to be inserted into a class 1 integron. These results show the emergence of novel bla(TEM) and bla(SHV) genes in Brazil. Moreover, the presence of class 1 integrons suggests a great potential for dissemination of bla(GES) genes into diverse nosocomial pathogens. Indeed, the bla(GES-7) gene was originally discovered in Enterobacter cloacae in Greece and, to our knowledge, has not been reported elsewhere.
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页码:630 / 632
页数:3
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