| virus → cause → alzheimer | 9 |
| virus → be implicated in → alzheimer’s disease | 5 |
| virus → be involved in → alzheimer's disease | 3 |
| virus → lead to → alzheimer | 3 |
| negative | neutral | positive |
| 0.474 | 0.409 | 0.116 |
| Raw frequency | 20 |
| Normalized frequency | 0.338 |
| Modifier score | 0.500 |
| Perplexity | 300.073 |