Table 2.

Published MICs of antimicrobial agents for M. abscessus, M. chelonae, and the M. fortuitumgroup with Mueller-Hinton agar or brotha

DrugM. abscessusM. chelonaeM. fortuitum group
MIC rangeModeMIC rangeModeMIC rangeMode
Amikacin4–32 (93)812 4–32 (88)1612 ≤1–2 (96)≤112
Tobramycin1–4 (100)12 112
Sulfamethoxazole≥64 (100)>6412 ≥64 (97)>6412 ≤32 (95)≤412
Cefoxitin16–64 (94)3212 >64 (98)>6412 16–64 (97)3212
Imipenem4–32 (90)1611 4–32 (89)1614 ≤1–8 (99)49,14
Doxycycline>16 (96)>1612 0.25–1.0 (26)<0.512 <0.25–1.0 (40)<0.512
≥16 (74)≥1612 ≥16 (44)≥1612
Clarithromycin≤0.25–2.0 (100)0.1254 ≤0.25–1.0 (100)0.1254 0.25–4 (81)24
8–>8 (19)>84
Ciprofloxacin1–2 (6)213 1–2 (19)213 <0.25–1.0 (98)<0.0639,13
4–>8 (94)>813 4–>8 (81)>813
  • a Summarized from references 4,9, and 12 to 14. The percentage of strains within each given range is listed in parentheses. The superscript indicates the reference number.