TABLE 4.
Comparison of GenoType NTM-DR assay results with rrs gene sequencing and DST for detecting amikacin resistance
| GenoType NTM-DR rrs gene result |
rrs gene sequencing result (no. of isolates) |
Amikacin drug susceptibility testing (no. of isolates) |
|||
|---|---|---|---|---|---|
| Wild type | Mutant | Susceptible | Intermediate | Resistant | |
| MAC | |||||
| M. avium | |||||
| Wild type | 21 | 1 | 12 | 8 | 2 |
| Mutant | 0 | 1 | 0 | 1 | |
| M. intracellulare | |||||
| Wild type | 34 | 0 | 19 | 15 | 0 |
| Mutant | 0 | 1 | 0 | 1 | |
| M. abscessus | |||||
| M. abscessus subsp. abscessus | |||||
| Wild type | 46 | 0 | 34 | 12 | 0 |
| Mutant | 0 | 1 | 0 | 0 | 1 |
| M. abscessus subsp. massiliense | |||||
| Wild type | 36 | 0 | 25 | 10 | 1 |
| Mutant | 0 | 2 | 0 | 0 | 2 |
| M. abscessus subsp. bolletii | |||||
| Wild type | 2 | 0 | 2 | 0 | 0 |
| Mutant | 0 | 0 | 0 | 0 | 0 |
| Total | |||||
| Wild type | 139 | 1 | 92 | 45 | 3 |
| Mutant | 0 | 5 | 0 | 0 | 5 |