| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| research on covid vaccine effectiveness | 0.92 | 0.8 | 58 | 1 | 39 |
| research | 1.69 | 0.1 | 4740 | 97 | 8 |
| on | 1.36 | 0.9 | 9224 | 14 | 2 |
| covid | 1.85 | 0.6 | 2058 | 80 | 5 |
| vaccine | 0.2 | 0.8 | 5874 | 48 | 7 |
| effectiveness | 0.29 | 0.9 | 1042 | 65 | 13 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| research on covid vaccine effectiveness | 0.31 | 0.3 | 5714 | 30 |
