TABLE 2.
NTM-positive respiratory samples as determined by qPCR, and corresponding diagnostic culture results
| Sample type | CT value | CFU/ml equivalent | Identification obtained with: |
|
|---|---|---|---|---|
| qPCR/sequencing | Diagnostic microbiology | |||
| BAL fluid | 30.5 | 1.36 × 105 | M. avium | M. avium |
| BAL fluid | 30.9 | 1.02 × 105 | M. avium | M. avium |
| BAL fluid | 32.1 | 4.58 × 104 | M. intracellulare | M. intracellulare |
| BAL fluid | 35.4 | 1.13 × 104 | M. avium | M. avium |
| BAL fluid | 34 | 8.70 × 104 | M. avium | —a |
| BAL fluid | 32.7 | 3.02 × 104 | M. avium | M. avium |
| Sputum | 31.1 | 3.22 × 104 | M. massiliense | M. massiliense |
| Sputum | 31.7 | 2.08 × 104 | M. flavescens | —a,b |
| Sputum | 31.5 | 2.44 × 104 | M. abscessus | M. abscessus |
| Sputum | 33.4 | 6.43 × 103 | M. avium | —a |
| Sputum | 35.5 | 1.49 × 103 | M. avium | M. avium |
a
—, not detected.
b
Sample was recorded as “insufficient for adequate assessment” for standard diagnostic analysis.