TABLE 3.
Specimens with discrepant test results
| Specimen ID | Specimen source | Xpert result | Comparator result; method | Result of additional testing |
|---|---|---|---|---|
| 2 | NPS | Negative | Inconclusive (N1 or N3 detected; unknown CT value); Quest SARS-CoV-2 | Negative (CDC 2019-nCoV real-time RT-PCR diagnostic panel) |
| RUO3695 | TA | Positive (E CT, 40.6; N2 CT, 40.1) | Negative; New York SARS-CoV-2 | Negative (SARS-CoV-2 assay [Panther Fusion system]; Hologic) |
| RUO4152 | NPS/OPS | Presumptive positive (E CT, 40.6) | Negative; New York SARS-CoV-2 | Negative (SARS-CoV-2 assay [Panther Fusion system]; Hologic) |
| M207300204 | NPS/OPS | Positive (N2 CT, 40.6) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 36.6) (Roche) |
| M207300207 | NPS/OPS | Positive (E CT, 33.7; N2 CT, 37.6) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 34.3) (Roche) |
| M207300219 | NPS/OPS | Positive (N2 CT, 40.1) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 36.9) (Roche) |
| M207300223 | NPS/OPS | Positive (E CT, 35.7; N2 CT, 38.3) | Negative; Charité Virology RdRp | Negative (E gene RT-PCR) (Roche) |
| M207300259 | NPS | Positive (RdRp CT, 31.7; E CT, 33.2; N2 CT, 28.9) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 37.1) (Roche) |
| M207300260 | NPS/OPS | Positive (RdRp CT, 33.2; E CT, 35.6; N2 CT, 28.6) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 33.1) (Roche) |
| M207300261 | NPS | Positive (RdRp CT, 36.8; E CT, 34.6; N2 CT, 28.6) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 33.6) (Roche) |
| M207300262 | NPS/OPS | Positive (RdRp CT, 35.0; E CT, 35.3; N2 CT, 28.5) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 29.5) (Roche) |
| M207300263 | NPS/OPS | Positive (N2 CT, 28.5) | Negative; Charité Virology RdRp | Positive (E gene RT-PCR; CT, 36.5) (Roche) |