Clinical laboratory · 2018
Emergence of IMP-4-Producing Enterobacter aerogenes Clinical Isolate.
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Lee Jong Ho, Lee Chae Hoon, Bae Il Kwon
Аннотация
BACKGROUND: IMP-4 class B metallo-β-lactamase-producing Enterobacteriaceae are resistant to carbapenems. The aim of this study was to characterize of IMP-4 metallo-β-lactamase (MBL)-producing Enterobacter aerogenes clinical isolate.
METHODS: IMP-4 MBL-producing E. aerogenes clinical isolate was collected from a Korean Hospital in 2017. Antimicrobial susceptibility was determined by disk diffusion methods. Further, minimum inhibitory concentrations of β-lactams were determined by Etest. Detection of bla genes was performed by PCR. The genetic organization of class 1 integron carrying the MBL gene cassette was investigated by PCR mapping and sequencing.
RESULTS: E. aerogenes strain YN170501 exhibited resistance to penicillins, cephalosporins, and carbapenems and was susceptible to monobactam, aminoglycosides, fluoroquinolone, tigecycline, and trimethoprim-sulfamethoxazole. The blaIMP-4 gene was located in class 1 integron.
CONCLUSIONS: The blaIMP-4 gene has never been reported in Enterobacter aerogenes clinical isolate from Korea.
METHODS: IMP-4 MBL-producing E. aerogenes clinical isolate was collected from a Korean Hospital in 2017. Antimicrobial susceptibility was determined by disk diffusion methods. Further, minimum inhibitory concentrations of β-lactams were determined by Etest. Detection of bla genes was performed by PCR. The genetic organization of class 1 integron carrying the MBL gene cassette was investigated by PCR mapping and sequencing.
RESULTS: E. aerogenes strain YN170501 exhibited resistance to penicillins, cephalosporins, and carbapenems and was susceptible to monobactam, aminoglycosides, fluoroquinolone, tigecycline, and trimethoprim-sulfamethoxazole. The blaIMP-4 gene was located in class 1 integron.
CONCLUSIONS: The blaIMP-4 gene has never been reported in Enterobacter aerogenes clinical isolate from Korea.