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Table 1 Distribution of S. mutans isolates from diabetic patients according to the inhibition zone diameters (mm) exhibited by various antibiotics (EUCAST format)

From: Genotypic and phenotypic heterogeneity in Streptococcus mutans isolated from diabetic patients in Rome, Italy

Antibiotic

Disk Content (μg)

Inhibition zone diameter (mm)

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

Vancomycin

5

0

0

0

0

0

1

6

5

1

4

1*

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Erythromycin

30

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

2

2

1

5

2

2

1

2*

0

0

0

0

Oxacillin

1

0

0

0

0

0

0

0

0

0

0

0

0

3

3

2

5*

3

2

0

0

0

0

0

0

0

0

0

0

0

0

0

Penicillin

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

2

3

4

4*

2

1

1

0

0

0

0

0

0

0

0

Rifampicin

5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

2

3

3

0

3

3*

1

0

0

0

0

0

0

Tetracycline

30

0

0

0

0

0

0

0

0

0

0

0

0

1

1

0

1

4

4

1

2

2*

1

1

0

0

0

0

0

0

0

0

Gentamicin

10

0

0

0

2

1

2

3

1

3

4

0

0

2*

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Cefoxitin

30

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

2

2

0

6

4

3*

0

0

0

0

0

0

0

0

Linezolid

10

0

0

0

0

0

0

0

0

0

2

0

1

1

0

4

5*

2

1

2

0

0

0

0

0

0

0

0

0

0

0

0

Norfloxacin

10

1

1

3

1

1

3

2

3

2

1*

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Clindamycin

10

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

1

6

5

0

0

3*

1

Levofloxacin

5

0

0

0

0

0

0

0

1

1

0

4

4

2

3

2*

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

  1. * Zone diameter exhibited by the control strain UA159