TABLE 3.
Vitek MS v3.0 library performance for identifying Mycobacterium spp. in liquid medium on the first and second runs
| Organism(s)a | No. (%) of isolates identified |
|||||
|---|---|---|---|---|---|---|
| Total | v3.0 | 1b | 2c | No ID | Mis-ID | |
| NTM slow growers | ||||||
| M. avium complex | ||||||
| M. avium | 75 | 60 (80) | 56 | 4 | 15 | 0 |
| M. intracellulare | 271 | 224 (74.9) | 214 | 10 | 68 | 0 |
| MAC-Xd (includes but may not discriminate among M. colombiense*, M. marseillense*, M. timonense*, M. chimaera*, and M. yongonense*) | 36 | 11 (30.6) | 11 | 0 | 25 | 0 |
| M. angelicum* | 2 | 0 (0.0) | 0 | 0 | 2 | 0 |
| M. asiaticum | 2 | 0 (0.0) | 0 | 0 | 2 | 0 |
| M. gordonae | 17 | 12 (70.6) | 11 | 1 | 5 | 0 |
| M. interjectum* | 1 | 0 (0.0) | 0 | 0 | 1 | 0 |
| M. kansasii | 111 | 88 (79.3) | 82 | 6 | 23 | 0 |
| M. lentiflavum | 3 | 3 (100) | 0 | 0 | 0 | 0 |
| M. mantenii | 1 | 0 (0.0) | 0 | 0 | 1 | |
| M. parascrofulaceum* | 6 | 0 (0.0) | 0 | 0 | 1 | 5 |
| M. seoulense* | 1 | 0 (0.0) | 0 | 0 | 1 | 0 |
| M. shigaense* | 1 | 0 (0.0) | 0 | 0 | 1 | 0 |
| M. szulgai | 3 | 3 (100) | 3 | 0 | 0 | 0 |
| M. triplex | 2 | 0 (0.0) | 0 | 0 | 2 | 0 |
| M. xenopi | 7 | 2 (28.6) | 2 | 0 | 5 | 0 |
| NTM rapid growers | ||||||
| M. abscessus | 284 | 253 (89.1) | 193 | 60 | 31 | 0 |
| M. chelonae | 5 | 4 (80) | 4 | 0 | 1 | 0 |
| M. fortuitum group (includes but does not discriminate between M. porcinum, M. peregrinum, M. septicum*) | 23 | 18 (78.3)e | 17 | 1 | 5 | 0 |
| M. monacense* | 2 | 0 (0.0) | 0 | 0 | 2 | 0 |
| M. neoaurum | 1 | 1 (100) | 1 | 0 | 0 | 0 |
| M. wolinskyi* | 1 | 0 (0.0) | 0 | 0 | 1 | 0 |
| Total | 855 | 658 (77.0) | 576 (67.4) | 82 (9.6) | 192 (22.4) | 5 (0.6) |
a
Species not included in the bioMérieux Vitek MS v3.0 database are indicated by asterisks.
b
1, number of strains identified for the first time.
c
2, number of strains identified for the second time.
d
MAC-X includes M. chimaera, M. colombiense, M. arosiense, M. vulneris, M. bouchedurhonense, M. marseillense, M. timonense, M. paraintracellulare, and M. yongonense.
e
Identification results correct to complex or group level.