Table 1 Antimicrobial agents and MIC breakpoints for rapidly growing mycobacteria

Amikacin

≤16

32

≥64

< 1 (S)

4 (S)

Cefoxitin

≤16

32–64

≥128

32 (I)

6432 (I)

Ciprofloxacin

≤1

2

≥4

0.25 (S)

832 (R)

Clarithromycin

≤2

4

≥8

2 (> 32)^a (R)

8 (> 32)^a (R)

Imipenem

≤4

8–16

≥32

2 (S)

4 (S)

Linezolid

≤8

16

≥32

8 (S)

8 (S)

Meropenem

≦4

8–16

≧32

2 (S)

4 (S)

Moxifloxacin

≤1

2

≥4

0.25 (S)

8

Trimethoprim-sulfamethozazole

≤2/38

–

≥4/76

0.5/9.5 (S)

0.5/9.5 (S)

Tobramycin

≤2

4

≥8

16 (R)

32 (R)

Levofloxacin^b

≤1

2

≥4

0.5 (S)

8 (R)

Sitafloxacin^c

0.25

1