| in the general population | 3 | location |
| on six million britons | 3 | location |
| by american children | 2 | other |
| vaccine → be → released | 48 |
| vaccine → be released for → use | 13 |
| negative | neutral | positive |
| 0.236 | 0.597 | 0.168 |
| Raw frequency | 61 |
| Normalized frequency | 0.410 |
| Modifier score | 0.500 |
| Perplexity | 310.058 |