| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| covid vaccine effectiveness studies | 0.86 | 0.9 | 2521 | 7 | 35 |
| covid | 1.99 | 0.5 | 6074 | 67 | 5 |
| vaccine | 0.72 | 0.5 | 9482 | 26 | 7 |
| effectiveness | 1.1 | 0.8 | 7718 | 70 | 13 |
| studies | 0.54 | 1 | 3188 | 61 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| covid vaccine effectiveness studies | 0.6 | 0.4 | 6300 | 17 |
| covid vaccine effectiveness study cdc | 0.88 | 0.3 | 2096 | 54 |
| cdc covid vaccine effectiveness studies | 1.42 | 0.3 | 1798 | 4 |
