| from an animal source | 6 | other |
| from birds | 6 | other |
| most commonly | 5 | degree |
| disease → be → acquired | 79 |
| disease → be → obtained | 11 |
| disease → be acquired by → human | 3 |
| negative | neutral | positive |
| 0.574 | 0.398 | 0.028 |
| Raw frequency | 93 |
| Normalized frequency | 0.558 |
| Modifier score | 0.625 |
| Perplexity | 456.742 |