TABLE 1.
Comparison of the identification results for the 154 isolates with the Vitek MS and the Biotyper MALDI-TOF MS systems using two different methods for the preparation of the samplesa
| MALDI-TOF MS system | No. of isolates identified by: |
|||||||
|---|---|---|---|---|---|---|---|---|
| Direct colony method |
Extraction method |
|||||||
| Total | R. equi | Dietzia spp. | Not identified | Total | R. equi | Dietzia spp. | Not identified | |
| Vitek MS | 35 | 35 | 0 | 119 | 130 (35 + 95*) | 124 (35 + 89*) | 6 (0 + 6*) | 24 |
| Bruker Biotyper | 141 | 141 | 0 | 13 | 153 (141 + 12*) | 144 (141 + 3*) | 9 (0 + 9*) | 1 |
a
*, the number of strains which required sample extraction to give a reliable identification.