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Table 1 Susceptibility profiles of E. coli or K. pneumoniae isolated from blood cultures with resistance to ceftriaxone during study period

From: Comparable outcomes for β-lactam/β-lactamase inhibitor combinations and carbapenems in definitive treatment of bloodstream infections caused by cefotaxime-resistant Escherichia coli or Klebsiella pneumoniae

Susceptibility category

Antimicrobial agent tested

E. coli

AMP

AMC

TZP

CXM

CRO

CTX

CAZ

FEP

FOX

IPM

MEM

ETP

LVX

CIP

SXT

GEN

AMK

R (%)

100

60

0

100

100

100

96

0

11

0

0

0

71

71

59

35

0

I (%)

0

0

0

0

0

0

4

4

20

0

0

0

0

3

0

0

3

S (%)

0

40

100

0

0

0

0

96

68

100

100

100

29

27

41

65

97

Total tested

79

73

79

79

79

79

79

79

79

79

79

79

79

79

79

79

79

K. pneumoniae

                 

R (%)

100

45

0

100

100

100

100

92

0

0

0

0

15

30

85

31

0

I (%)

0

0

0

0

0

0

0

8

8

0

0

0

0

40

0

0

0

S (%)

0

55

100

0

0

0

0

0

92

100

100

100

85

30

15

69

100

Total tested

13

11

13

13

13

13

13

13

13

13

13

13

13

10

13

13

13

  1. R = resistant, I = intermediate, S = susceptible; AMP = ampicillin, AMC = amoxicillin-clavulanate, TZP = piperacillin-tazobactam, CXM = cefuroxime, CRO = ceftriaxone, CTX = cefotaxime, CAZ = ceftazidime, FEP = cefepime, FOX = cefoxitin, IMP = imipenem, MEM = meropenem, ETP = ertapenem, LVX = levofloxacin, CIP = ciprofloxacin, SXT = trimethoprim-sulphamethoxazole, GEN = gentamicin, AMK = amikacin.