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Table 3 Shiga toxin genotypes of STEC isolates

From: Prevalence, virulence potential, and pulsed-field gel electrophoresis profiling of Shiga toxin-producing Escherichia coli strains from cattle

Shiga toxin gene type

Serotype

No. of isolates

stx variants

stx1c

stx2a

stx2c

stx2g

stx1 only

O55

1

1

–

–

–

O84

4

4

–

–

–

O108

5

5

–

–

–

O111

2

2

–

–

–

NT

1

1

–

–

–

Subtotal

13

13

–

–

–

stx2 only

O15

3

–

0

0

3

O109

2

–

0

0

2

O119

3

–

3

0

0

O157

18

–

18

18

0

O169

1

–

1

0

0

O185

1

–

1

1

0

Subtotal

28

–

23

19

5

Both stx1 and stx2

O8

4

3

4

0

0

O157

17

17

17

15

0

NT

1

1

1

0

0

Subtotal

22

21

22

15

0

Total

 

63

34

45

34

5

  1. NT non-typeable for STEC serogroup