TABLE 3.
Agreement of the Xpert Xpress SARS-CoV-2/Flu/RSV test with the comparator standard-of-care influenza A virus, influenza B virus, and RSV testsa
| Test(s) | No. of specimens with Cepheid Xpert Xpress SARS-CoV-2/Flu/RSV test result/comparator test result of: |
|||
|---|---|---|---|---|
| Pos/Pos | Pos/Neg | Neg/Pos | Neg/Neg | |
| Influenza A virus | ||||
| All methods | 65 | 0 | 0 | 50 |
| BioFire RP2.1 | 10 | 0 | 0 | 30 |
| Xpert Xpress Flu/RSV | 31 | NA | 0 | NA |
| GenMark ePlex respiratory pathogen panel | 4 | NA | 0 | NA |
| CDC human influenza virus real-time RT-PCR diagnostic panel | 20 | NA | 0 | NA |
| BioFire respiratory panel v1.7 | NA | 0 | NA | 20 |
| Influenza B virus | ||||
| All methods | 50 | 0 | 0 | 50 |
| BioFire RP2.1 | 10 | 0 | 0 | 30 |
| Xpert Xpress Flu/RSV | 16 | NA | 0 | NA |
| GenMark ePlex respiratory pathogen panel | 4 | NA | 0 | NA |
| CDC human influenza virus real-time RT-PCR diagnostic panel | 20 | NA | 0 | NA |
| BioFire respiratory panel v1.7 | NA | 0 | NA | 20 |
| RSV | ||||
| All methods | 38 | 0 | 0 | 50 |
| BioFire RP2.1 | 10 | 0 | 0 | 30 |
| Xpert Xpress Flu/RSV | 25 | NA | 0 | NA |
| GenMark ePlex respiratory pathogen panel | 3 | NA | 0 | NA |
| BioFire respiratory panel v1.7 | NA | 0 | NA | 20 |
a
Pos, positive; Neg, negative; NA, not applicable.