| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what is serum sickness | 0.92 | 1 | 7332 | 46 | 22 |
| what | 0.13 | 0.3 | 3909 | 60 | 4 |
| is | 1.52 | 0.9 | 2583 | 17 | 2 |
| serum | 0.56 | 0.5 | 1617 | 25 | 5 |
| sickness | 0.22 | 0.1 | 638 | 5 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is serum sickness | 1.33 | 0.1 | 6572 | 16 |
