Characters

ESBL and AmpC phenotypes

ESBLs + AmpC

ESBLs

AmpC

Neither

Total

Number

72

70

12

9

163

Resistance to cephalosporins

cefoxitin

68 (94.4)^a,x

18 (25.7)^c,z

11 (91.7)^a,x

6 (66.7)^b,x

103 (63.2)

ceftriaxone

71 (98.6)^a,x

69 (98.6)^a,x

7 (58.3)^b,y

1 (11.1)^c,y

148 (90.8)

ceftazidime

71 (98.6)^a,x

63 (90.0)^a,x

11 (91.7)^a,x

5 (55.6)^b,x

150 (92.0)

cefotaxime

71 (98.6)^a,x

69 (98.6)^a,x

12 (100.0)^a,x

7 (77.8)^b,x

159 (97.5)

cefepime

41 (56.9)^a,y

41 (58.6)^a,y

2 (16.7)^b,z

1 (11.1)^b,y

85 (52.1)

Resistance to carbapenem

Imipenem

33 (45.8)^a,x

3 (4.3)^b

7 (58.3)^a

3 (33.3)^a

46 (28.2)

Meropenem

16 (22.2)^b,y

3 (4.3)^b

6 (50.0)^a

1 (11.1)^b

26 (16.0)

Ertapenem

26 (36.1)^b,xy

4 (5.7)^c

8 (66.7)^a

2 (22.2)

40 (24.5)

AmpA genes

bla_SHV

72 (100.0)

70 (100.0)

12 (100.0)

9 (100.0)

163 (100)

bla_TEM

60 (83.3)

53 (75.7)

9 (75.0)

1 (11.1)

123 (75.5)

bla_CTX-M3

6 (8.3)

13 (18.6)

0 (0.0)

0 (0.0)

19 (11.7)

bla_CTX-M14

31 (43.1)

25 (35.7)

0 (0.0)

0 (0.0)

56 (34.4)

AmpC genes

bla_DHA

67 (93.1)

13 (18.6)

9 (75.0)

4 (44.4)

93 (57.1)

bla_CMY2

7 (9.7)

3 (4.3)

3 (25.0)

0 (0.0)

13 (8.0)