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Table 1 Number and proportion of ESBL-producing and carbapenemase-producing Enterobacteriaceae included in the study according to species

From: Development of an algorithm for phenotypic screening of carbapenemase-producing Enterobacteriaceae in the routine laboratory

Species

Number (%) of isolates

Total

ESBL+

Carbapenemase positive

Total

OXA-48

KPC

MBL

Klebsiella pneumoniae

121

91 (75.2)

33 (27.3)

24

7

2

Enterobacter cloacae

89

32 (36.0)

0

   

Enterobacter aerogenes

46

20 (43.5)

0

   

Escherichia coli

42

24 (57.1)

10 (23.8)

9

 

1

Citrobacter freundii

18

7 (38.9)

2 (11.1)

1

1

 

Serratia marcescens

10

0

2 (20.0)

2

  

Klebsiella oxytoca

5

0

2 (40.0)

2

  

Proteus mirabilis

1

1 (100)

1 (100)

  

1

Salmonella spp

1

1 (100)

1 (100)

  

1

Others

16

3 (18.8)

1 (6.3)

1

  

Total

349

179 (51.3)

52 (14.9)

39

8

5

  1. ESBL+ extended-spectrum β-lactamase production, OXA-48 OXA-48 group carbapenemase, MBL metallo-beta-lactamase