Table 5 Rapid plasma reagin (RPR) test results and titre for samples with positive gold standard and false negative rapid test.
| Country | Test | Sample | RPR | Titre |
|---|---|---|---|---|
| Tanzania | Abbott | 1 | Negative | |
| 2 | Negative | |||
| 3 | Negative | |||
| 4 | Negative | |||
| 5 | Negative | 1:16 | ||
| Haiti | Omega | 1 | Negative | |
| Qualpro | 1 | Negative | ||
| Brazil | Abbott | 1 | Negative | |
| 2 | Negative | |||
| 3 | Negative | |||
| 4 | Negative | |||
| 5 | Positive | 1:4 | ||
| 6 | Positive | 1:16 | ||
| Omega | 1 | Negative | ||
| 2 | Positive | 1:4 | ||
| Qualpro | 1 | Negative | ||
| 2 | Negative | |||
| 3 | Negative | |||
| 4 | Positive | 1:1 | ||
| 5 | Positive | 1:1 | ||
| 6 | Positive | 1:32 | ||
| Standard | 1 | Negative | ||
| 2 | Negative | |||
| 3 | Positive | 1:1 | ||
| 4 | Positive | 1:1 | ||
| 5 | Positive | 1:32 |