| during the early stages of infection | 4 | temporal |
| exclusively | 3 | degree |
| continuously | 3 | temporal |
| antigen → be → expressed | 20 |
| antigen → be expressed in → vivo | 7 |
| negative | neutral | positive |
| 0.208 | 0.684 | 0.109 |
| Raw frequency | 27 |
| Normalized frequency | 0.491 |
| Modifier score | 0.850 |
| Perplexity | 120.549 |