TABLE 2.
Performances of routine phenotypic identification method and MALDI Biotyper system for 217 clinical isolates of Aeromonas species
| Aeromonas species identified by gene sequencing (no. of isolates) | Results from MALDI Biotyper system |
Results from Phoenix system |
Results from Vitek 2 system |
|||
|---|---|---|---|---|---|---|
| Species (no. of isolates) | Correct IDa (%) to species level (score, ≥2.0) | Species (no. of isolates) | Correct ID (%) | Species (no. of isolates) | Correct ID (%) | |
| A. dhakensis (58) | A. hydrophila (52) | 0 | A. hydrophila (48) | 0.0 | A. hydrophila/A. caviae (58) | 0 |
| A. caviae (5) | A. veronii (4) | |||||
| A. jandaei (1) | A. sobria (4) | |||||
| Unidentified organism (2) | ||||||
| A. hydrophila subsp. hydrophila (35) | A. hydrophila (34) | 97.1 | A. hydrophila (27) | 77.1 | A. hydrophila/A. caviae (35) | 100 |
| A. caviae (1) | A. veronii (8) | |||||
| A. veronii (61) | A. veronii (57) | 93.4 | A. sobria (59) | 0 | A. hydrophila/A. caviae (21) | 1.6 |
| A. ichthiosmia (4) | Unidentified organisms (2) | A. sobria (34) | ||||
| A. veronii (1) | ||||||
| A. sobria/A. veronii (5) | ||||||
| A. caviae (61) | A. caviae (56) | 91.8 | A. caviae (43) | 70.5 | A. hydrophila/A. caviae (61) | 0 |
| A. hydrophila (4) | A. hydrophila (9) | |||||
| A. jandaei (1) | A. veronii (5) | |||||
| A. sobria (2) | ||||||
| Unidentified organism (2) | ||||||
| A. sanarellii (1) | A. caviae (1) | 0 | A. veronii | 0 | A. hydrophila/A. caviae | 0 |
| A. taiwanensis (1) | A. caviae (1) | 0 | A. veronii | 0 | A. hydrophila/A. caviae | 0 |
a
ID, identification.