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Table 3 Prevalence of ESBL producers among E. coli Strains from rodents in the animal experimental unit

From: Genetic characterization of commensal Escherichia coli isolated from laboratory rodents

Strains

Zone diameter (mm)

ESBL producing organismb

CTXa

CTX + CAa

CAZa

CAZ + CAa

K. pneumoniae ATCC 700603

6

28

7

20

+

E. coli ATCC 25922

15

15

16

16

−

UM-AEU015

14

14

14

14

−

UM-AEU018

13

13

15

15

−

UM-AEU021

16

16

16

16

−

UM-AEU116

15

16

15

16

−

UM-AEU131

13

13

14

14

−

UM-AEU140

15

15

15

16

−

UM-AEU197

14

15

15

16

−

UM-AEU198

13

14

14

14

−

UM-AEU202

13

13

13

14

−

UM-AEU203

15

16

16

17

−

UM-AEU208

14

14

15

16

−

UM-AEU213

15

15

16

16

−

UM-AEU214

14

15

15

15

−

  1. aCTX = cefotaxime, CTX + CA = cefotaxime-clavulanic acid, CAZ = ceftazidime, CAZ + CA = ceftazidime-clavulanic acid
  2. bESBL producing organism; + = ESBL producer, − = non-ESBL producer
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