| from saliva | 17 | cause |
| originally | 16 | manner |
| from these samples | 16 | other |
| virus → be → isolated | 436 |
| virus → be isolated in → addition | 6 |
| virus → be → isolate | 3 |
| negative | neutral | positive |
| 0.320 | 0.629 | 0.051 |
| Raw frequency | 445 |
| Normalized frequency | 0.892 |
| Modifier score | 0.323 |
| Perplexity | 255.695 |