Table 2.
Qualitative agreement (positive and negative) in COVID-19 test results between various assays when the same specimens were processed pre- and post-vortexing.
| Non-Vortexinga |
||||||||
|---|---|---|---|---|---|---|---|---|
| Vortexinga | cobas | BioFire | Panther | Simplexa | E gene LDT | SC2/Flu | Xpress SARS-CoV-2 | Xpress SARS-CoV-2/FLU/RSV |
| E gene LDT | – | 2/2 | 2/2 | – | 217/217 | 39/39 | 34/34 | 34/34 |
| cobas | 34/35b(97.1) | 33/33 | 29/29 | 33/35b(94.3) | – | – | – | – |
a
For details regarding assays, please refer to Table S1.
b
The three samples where vortexed and non-vortexed samples did not have the same qualitative result, were termed discordant, and evaluated using a discordant analysis (see Materials and Methods).