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Table 2 Antimicrobial susceptibilities of the six NDM-1-positive K. pneumoniae isolates

From: Characteristics of NDM-1-producing Klebsiella pneumoniae ST234 and ST1412 isolates spread in a neonatal unit

Isolate No.

Resistance mechanisms

MIC(mg/liter) ofa

SCF

IPM

CAZ

MEM

TZP

PB

FEP

AM

PIP

LE

TG

ATM

KP1

NDM-1, CTX-M-14, SHV-27,qnrB4

> 128

64

> 128

64

> 128

0.5

64

0.125

> 128

< 0.125

0.125

4

KP2

NDM-1, CTX-M-14, SHV-27,qnrB4

> 128

64

> 128

64

> 128

0.5

64

0.125

> 128

< 0.125

< 0.125

4

KP3

NDM-1, SHV-148

> 128

32

> 128

> 128

> 128

2

> 128

0.25

> 128

< 0.125

0.25

4

KP4

NDM-1, SHV-148

> 128

32

> 128

> 128

> 128

1

> 128

0.25

> 128

< 0.125

< 0.125

4

KP5

NDM-1, SHV-148

> 128

32

> 128

> 128

> 128

1

64

1

> 128

< 0.125

< 0.125

8

KP6

NDM-1, SHV-148

> 128

32

> 128

32

> 128

1

32

1

> 128

< 0.125

< 0.125

0.125

J53–3

NDM-1

> 128

16

> 128

32

> 128

2

128

8

> 128

< 0.125

< 0.125

0.25

J53–4

NDM-1

> 128

32

> 128

32

> 128

2

64

4

> 128

< 0.125

< 0.125

0.25

J53–5

NDM-1

> 128

8

> 128

8

> 128

2

32

2

> 128

< 0.125

< 0.125

< 0.125

J53–6

NDM-1

> 128

8

> 128

8

> 128

2

32

4

> 128

< 0.125

< 0.125

0.25

  1. aSCF, sulbactam/cefoperazone; IPM, imipenem; CAZ, ceftazidime; MEM, meropenem; TZP, piperacillin /tazobactam; PB, polymixin B; FEP, cefepime; AM, amikacin; PIP, piperacillin; LE, levofloxacin; TG, tigecycline; ATM, aztreonam
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BMC Microbiology

ISSN: 1471-2180

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