Table 5.
Follow-up comparison of different anti-SARS-CoV-2-antibody assays.
| Individual | SCO Mikrogen | Euroimmun IgG ratio |
Abbott Architect |
|---|---|---|---|
| Individuals tested initially POSITIVE by the Mikrogen assay | |||
| 1 | 32.00 | 0.1 | 0.09 |
| 3 | 61.60 | 0.1 | 0.05 |
| 4 | 23.00 | 0.1 | 0.21 |
| 5 | 38.90 | 0.1 | NA |
| 6 | 39.20 | 0.1 | 0.05 |
| 7 | 18.80 | 0.1 | NA |
| 8 | 34.40 | 0.1 | 0.02 |
| 10 | 30.60 | 0.1 | 0.02 |
| 11 | 36.30 | 0.1 | 0.05 |
| 12 | 37.10 | 0.1 | 0.07 |
| 14 | 26.60 | 0.1 | 0.05 |
| 15 | 24.00 | 0.1 | 0.02 |
| 17 | 21.80 | 0.1 | 0.02 |
| Individuals tested initially POSITIVE by the Euroimmun assay | |||
| 21 | 73.90 | 2.8 | 1.6 |
| 22 | 52.70 | 1.3 | 4.87 |
| 23 | 24.10 | 0.9 | 1.59 |
| Individuals tested initially EQUIVOCAL by the Mikrogen assay | |||
| 25 | 21.80 | 0.1 | 0.07 |
| 26 | 21.00 | 0.1 | 0.02 |
| 27 | 14.40 | 0.2 | 0.21 |
| 28 | 11.70 | 0.1 | 0.02 |
| 30 | 19.60 | 0.1 | 0.31 |
Individual refers to the individuals presented in Table 3, NA: not available.
Mikrogen assay (equivocal: ratio ≥ 20 to >24; seropositive: ratio ≥ 24)
Euroimmun assay (equivocal: ratio ≥ 0.8 to < 1.1; seropositive: ratio ≥ 1.1)
Abbott assay (seronegative: ratio: <1.4; seropositive: ratio ≥ 1.4)