| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| diphtheria vaccine invented | 1.41 | 0.4 | 1040 | 97 | 27 |
| diphtheria | 0.95 | 0.3 | 9059 | 35 | 10 |
| vaccine | 1.68 | 0.7 | 6709 | 49 | 7 |
| invented | 1.98 | 0.3 | 5234 | 43 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| diphtheria vaccine invented | 0.34 | 1 | 9613 | 44 |
