| during pregnancy | 16 | temporal |
| during the first trimester | 7 | temporal |
| from week | 3 | temporal |
| mother → be → infected | 61 |
| mother → become → infected | 7 |
| mother → becomes → infected | 3 |
| mother → be infected with → the disease | 3 |
| negative | neutral | positive |
| 0.618 | 0.338 | 0.044 |
| Raw frequency | 74 |
| Normalized frequency | 0.510 |
| Modifier score | 0.500 |
| Perplexity | 421.654 |