TABLE 1.
MICs and MBCs of M. abscessus strains
| Strain | MIC or MBC (mg/L)a |
|||||
|---|---|---|---|---|---|---|
| Amikacin |
Apramycin |
|||||
| MIC | MBC18 | MBC36 | MIC | MBC18 | MBC36 | |
| Clinical isolates | ||||||
| M. abscessus subsp. abscessus 500043/08 | 1 | >32 | >32 | 0.5 | 2 | 1 |
| M. abscessus subsp. abscessus 500042/08 | 1 | >32 | >32 | 0.5 | 4 | 2 |
| M. abscessus subsp. massiliense 500044/09 | 1 | >32 | >32 | 0.5 | 2 | 1 |
| M. abscessus subsp. massiliense 500446/19 | 1 | >32 | >32 | 0.5 | 4 | 2 |
| M. abscessus subsp. bolletii 179709/08 | 1 | >32 | >32 | 0.5 | 4 | 2 |
| M. abscessus subsp. bolletii 181739/08 | 4 | >32 | >32 | 0.5 | 4 | 2 |
| ATCC type strain and isogenic mutants | ||||||
| M. abscessus ATCC 19977 | 1 | >32 | >32 | 0.5 | 2 | 1 |
| M. abscessus Δeis2 | 0.25 | 1 | 1 | 0.5 | 2 | 1 |
| M. abscessus Δaac(2′) | 1 | >32 | >32 | 0.5 | 4 | 2 |
| M. abscessus Δaac(2′) Δeis2 | 0.25 | 2 | 1 | 0.5 | 4 | 2 |
| M. abscessus ΔwhiB7 | 0.25 | ND | ND | 0.5 | ND | ND |
a MBC18, MBC at 18 h of drug exposure; MBC36, MBC at 36 h of drug exposure; ND, not done.