Characterization of CTX-M-14- and CTX-M-15-Producing Escherichia coli and Klebsiella pneumoniae Isolates from Urine Specimens in a Tertiary-Care Hospital
Characterization of CTX-M-14- and CTX-M-15-Producing Escherichia coli and Klebsiella pneumoniae Isolates from Urine Specimens in a Tertiary-Care Hospital
김세미(충남대학교); 성지연(극동대학교); 조혜현(전주기전대학); 권계철(충남대학교); Sun Hoe Koo(Chungnam National University Hospital)
24권 6호, 765~770쪽
초록
This study aimed to characterize CTX-M producers of urinary E. coli and K. pneumoniae isolates and to determine the prevalence of plasmid-mediated antimicrobial resistance genes among them. Minimum inhibitory concentrations (MICs) were determined, and PCR and sequencing were performed. Among the 42 (82.3%) E. coli and 24 (77.4%) K. pneumoniae isolates containing blaCTX-M, blaCTX-M-14 and blaCTX-M-15 were detected in 23 and 19 E. coli isolates, respectively, and in 7 and 17 K. pneumoniae isolates, respectively. CTX-M producers of urinary E. coli and K. pneumoniae were resistant to multiple antibiotics and contained other antimicrobial resistance genes. CTX-M-15 producers contained more antimicrobial resistance genes than did CTX-M-14 producers.
Abstract
This study aimed to characterize CTX-M producers of urinary E. coli and K. pneumoniae isolates and to determine the prevalence of plasmid-mediated antimicrobial resistance genes among them. Minimum inhibitory concentrations (MICs) were determined, and PCR and sequencing were performed. Among the 42 (82.3%) E. coli and 24 (77.4%) K. pneumoniae isolates containing blaCTX-M, blaCTX-M-14 and blaCTX-M-15 were detected in 23 and 19 E. coli isolates, respectively, and in 7 and 17 K. pneumoniae isolates, respectively. CTX-M producers of urinary E. coli and K. pneumoniae were resistant to multiple antibiotics and contained other antimicrobial resistance genes. CTX-M-15 producers contained more antimicrobial resistance genes than did CTX-M-14 producers.
- 발행기관:
- 한국미생물·생명공학회
- 분류:
- 생물학