Skip to main content

Table 3 Distribution of genotypes of ESBL and AmpC in 198 ESC-resistant Shigella isolates

From: Epidemic and virulence characteristic of Shigella spp. with extended-spectrum cephalosporin resistance in Xiaoshan District, Hangzhou, China

ESBL phenotypic confirmatory test (n)

Genotype

S. flexneri(n = 58)

S. sonnei(n = 140)

Total (n = 198)

ESBL or AmpC group

ESBL or AmpC gene

Positive (n = 190)

CTX-M-1

CTX-M-15

5

11

16

CTX-M-28

2

6

8

CTX-M-57

7

2

9

CTX-M-22

3

2

5

CTX-M-9

CTX-M-14

16

69

85

TEM

TEM-1

2

4

6

OXA

OXA-30

4

11

15

CTX-M-1+CTX-M-9+OXA

CTX-M-15+CTX-M-14+OXA-30

1

0

1

CTX-M-1+ OXA+TEM

CTX-M-22+OXA-30+TEM-1

0

2

2

CTX-M-57+ OXA-30+TEM-1

9

0

9

CTX-M-1+ TEM

CTX-M-57+ TEM-1

2

0

2

CTX-M-1+ OXA

CTX-M-57+ OXA-30

1

1

2

CTX-M-15+ OXA-30

2

8

10

CTX-M-9+ OXA+TEM

CTX-M-14+ OXA-30+ TEM-1

1

3

4

CTX-M-9+ OXA

CTX-M-14+ OXA-30

2

6

8

CTX-M-9+ TEM

CTX-M-14+ TEM-1

0

6

6

Not detect the ESBL or AmpC genotype

0

2

2

Negative (n = 8)

CTX-M-9+CIT

CTX-M-14+CMY-2

0

1

1

CTX-M-1+DHA+OXA

CTX-M-15+OXA-30+DHA-1

1

0

1

Not detect the ESBL or AmpC genotype

0

6

6