Table 4.
Comparisons of detection results using different SARS antibody assays
| Reagent | Testing No. | Negative | Positive | SS | SN | CV* (%) |
|---|---|---|---|---|---|---|
| GBI | 1 | 25/25** | 25/25 | 3/6 | 6/7 | 2.7 |
| 2 | 25/25 | 25/25 | 3/6 | 6/7 | 2.6 | |
| 3 | 25/25 | 25/25 | 3/6 | 6/7 | 2.6 | |
| 4 | 25/25 | 25/25 | 3/6 | 6/7 | 1.9 | |
| 5 | 25/25 | 25/25 | 3/6 | 6/7 | 2.8 | |
| CDC | 1 | 25/25 | 14/25 | 0/6 | 0/7 | 4.7 |
| 2 | 25/25 | 16/25 | 1/6 | 1/7 | 9.9 | |
| 3 | 25/25 | 18/25 | 2/6 | 0/7 | 3.5 | |
| Euroimmun | 1 | 25/25 | 24/25 | 2/6 | 3/7 | 4.7 |
| 2 | 25/25 | 24/25 | 3/6 | 4/7 | 6.5 | |
Note: *The CV sample was added into 10 wells in parallel at one test. CV was calculated according to mean of values and standard deviation. **The numerator means number of samples which kits give same results as indicated in reference panel while the denominator means number of examined samples.