TABLE 1.
Identification platforms assessed in the study
| Identification platform | Biochemical panel | Software version | MALDI-TOF MS database version | SIG members included in the database |
|---|---|---|---|---|
| MicroScan WalkAway | Pos Combo panel type 33 | 4.42 | NAa | S. intermedius |
| BD Phoenix | PMIC/ID-105 | 6.21A | NA | S. intermedius |
| Vitek 2 | GP ID card | 07.01 | NA | S. intermedius, S. pseudintermedius |
| MALDI Biotyper | NA | NA | IVD: Claim 2 | S. delphini,c S. intermedius,c S. pseudintermedius |
| RUO: 6903/7311b | S. delphini, S. intermedius, S. pseudintermedius | |||
| Vitek MS | NA | NA | IVD: Knowledge Base v2.0 | S. intermedius,d S. pseudintermediusd |
| RUO: Knowledge Base v4.13 | S. delphini, S. delphini/S. intermedius/S. pseudintermedius,e S. intermedius, S. pseudintermedius |
a
NA, not applicable.
b
Isolates 8086 and P50 were analyzed using RUO database 7311. The remaining isolates were analyzed using RUO database 6903.
c
Both S. delphini and S. intermedius were included as non-clinically validated species in the MALDI Biotyper IVD Claim 2 database, which means they were not formally tested in United States Food and Drug Administration clinical trials.
d
Both S. intermedius and S. pseudintermedius were included as non-clinically validated species in the Vitek MS IVD Knowledge Base v2.0 database.
e
One possible identification result that can be returned from the Vitek MS RUO Knowledge Base v4.13 is S. delphini/S. intermedius/S. pseudintermedius.