Table 1 Correlation between generic E. coli MLVA using seven loci (GECM-7) and PFGE using >80% similarity index for the designation of types for typing 116 ESBL-E. coli isolates; 34 isolates (bold) belong to the O25b-ST131 lineage

JB

1 ^b

2

3

CK

3

3

DA

1 ^b

1 ^b

2

GA

1

1 ^b

2

IA

2 ^b

2

A

1 ^b

9 ^a

10

O

3 ^b

3

Q

1 ^b

2 ^b

3

S

2 ^b

2

V

4 ^b

4

BU

3

3

BF

2

2

AR

2

2

AS

1

1

2

B

3^a

3

CB

3

3

CG

2

2

Non-typeable

1

1

1

3

Singleton by PFGE and cluster by GECM-7

2

1

2

1

1

2

3

2

4 ^b

1

1

1

2

1

Singleton PFGE and GECM-7 38^c

Singleton PFGE 62^c

Total

2

4

2

4

2

2

5

6

2

3

17

14

4

3

2

3

2

Singleton GECM-7 39

Total 116