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Analytical sensitivity (limits of detection—LOD).
| Variant | LOD |
|---|---|
| Reference WHO International Standard (NIBSC 20/146) | 313 IU/mL |
| Alpha (VOC-20DEC-01, B.1.1.7) | 49 copies/ml |
| Beta (VOC-20DEC-02, B.1.351 | 99 copies/mL |
| Gamma (VOC-21JAN-02, P.1) | 197 copies/mL |
| Delta (VOC-21APR-02, B.1.617.2) | 22 copies/mL |
