| very | 22 | degree |
| to our very existence | 10 | transitive-object |
| in the functioning of every ecosystem | 8 | other |
| virus → be → important | 37 |
| virus → be → essential | 19 |
| virus → be → vital | 10 |
| virus → be → crucial | 7 |
| virus → be → critical | 6 |
| negative | neutral | positive |
| 0.170 | 0.523 | 0.307 |
| Raw frequency | 79 |
| Normalized frequency | 0.583 |
| Modifier score | 0.700 |
| Perplexity | 140.072 |