| rarely | 34 | degree |
| to humans | 15 | transitive-object |
| depending on the strain | 13 | other |
| virus → be → fatal | 162 |
| virus → prove → fatal | 7 |
| virus → become → fatal | 5 |
| negative | neutral | positive |
| 0.840 | 0.129 | 0.030 |
| Raw frequency | 174 |
| Normalized frequency | 0.724 |
| Modifier score | 0.424 |
| Perplexity | 180.465 |