Table 1.
m2000 and Alinity m SARS-CoV-2 assay results with B.1.1.7, B.1.351, and P.1 virus culture dilutions.
| Sample ID+ | TCID50/mL | Log GE/mL* | RealTime SARS-CoV-2 | Alinity m SARS-CoV-2 | Alinity m Resp-4-Plex | |
|---|---|---|---|---|---|---|
| B.1.1.7 variant | BEI NR-54,011 Dilution 1 | 28 | 6.25 | Detected | Detected | Detected |
| BEI NR-54,011 Dilution 2 | 2.8 | 5.19 | Detected | Detected | Detected | |
| BEI NR-54,011 Dilution 3 | 0.28 | 4.00 | Detected | Detected | Detected | |
| BEI NR-54,011 Dilution 4 | 0.028 | 2.85 | Detected | Detected | Detected | |
| B.1.351 variant | BEI NR-54,008 Dilution 1 | 28 | 4.63 | Detected | Detected | Detected |
| BEI NR-54,008 Dilution 2 | 2.8 | 3.83 | Detected | Detected | Detected | |
| BEI NR-54,008 Dilution 3 | 0.28 | 2.51 | Detected | Detected | Detected | |
| BEI NR-54,008 Dilution 4 | 0.028 | 1.27 | Detected | Detected | Detected | |
| BEI NR-54,009 Dilution 1 | 28 | 4.35 | Detected | Detected | Detected | |
| BEI NR-54,009 Dilution 2 | 2.8 | 3.27 | Detected | Detected | Detected | |
| BEI NR-54,009 Dilution 3 | 0.28 | 2.11 | Detected | Detected | Detected | |
| BEI NR-54,009 Dilution 4 | 0.028 | 0.73 | Detected | Detected | Detected | |
| P.1 variant | BEI NR-54,982 Dilution 1 | 28 | 4.56 | Detected | Detected | Detected |
| BEI NR-54,982 Dilution 2 | 2.8 | 3.45 | Detected | Detected | Detected | |
| BEI NR-54,982 Dilution 3 | 0.28 | 2.39 | Detected | Detected | Detected | |
| BEI NR-54,982 Dilution 4 | 0.028 | 1.32 | Detected | Detected | Detected |
⁎
Log genome equivalents (GE)/mL were calculated from a standard curve plot of TCID50 vs GE with an R2 value of 0.99. Four out of four replicates were detected for all dilutions tested.