Table 5.
Representative CLIA Intensity to Expected Titer Concentrations
| CLIA S/Co Values | Estimated ELISA IgG Antibody Titer | ||
|---|---|---|---|
| Estimated ELISA IgG Antibody Titer, Mean | Lower 95% | Upper 95% | |
| 0 | 1:133.6 | 1:104.2 | 1:171.4 |
| 1 | 1:270.7 | 1:195.7 | 1:374.5 |
| 2 | 1:362.7 | 1:254.1 | 1:517.7 |
| 3 | 1:454.0 | 1:310.5 | 1:663.7 |
| 4 | 1:548.5 | 1:367.6 | 1:818.4 |
| 5 | 1:648.0 | 1:426.6 | 1:984.2 |
| 6 | 1:753.4 | 1:488.1 | 1:1162.9 |
| 7 | 1:865.4 | 1:552.4 | 1:1355.8 |
| 8 | 1:984.5 | 1:619.8 | 1:1563.9 |
| 9 | 1:1111.3 | 1:690.6 | 1:1788.3 |
| 10 | 1:1246.3 | 1:765.0 | 1:2030.2 |
| 15 | 1:2058.5 | 1:1197.6 | 1:3538.4 |
| 20 | 1:3142.7 | 1:1747.4 | 1:5652.0 |
| 25 | 1:4562.2 | 1:2437.5 | 1:8538.9 |
| 30 | 1:6390.3 | 1:3293.3 | 1:12,399.7 |
| 35 | 1:8711.7 | 1:4343.2 | 1:17,474.0 |
| 50 | 1:19,692.3 | 1:8997.1 | 1:43,101.0 |
| 60 | 1:31,714.9 | 1:13,769.7 | 1:73,046.9 |
| 70 | 1:49,157.5 | 1:20,365.0 | 1:118,657.2 |
Abbreviations: CLIA, chemiluminescent immunoassay, S/Co, sample to control intensity ratio, ELISA, enzyme-linked immunosorbent assay.