Performance of salivary western blot (WB) compared with serum WB by salivary enzyme linked immunosorbent assay (ELISA) status
| Salivary ELISA | Salivary WB | Serum WB positive | Serum WB negative |
|---|---|---|---|
| Positive | Positive | 26 | 6 |
| Positive | Negative | 3 | 21 |
| Negative | Positive | 12 | 1 |
| Negative | Negative | 6 | 47 |