| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| natural active and natural passive immunity | 1.41 | 0.1 | 5544 | 66 |
| natural active immunity vs natural passive | 0.25 | 0.9 | 9439 | 75 |
| natural acquired active and passive immunity | 1.4 | 0.4 | 7783 | 41 |
| active passive artificial natural immunity | 1.15 | 0.5 | 6145 | 51 |
| natural and artificial passive immunity | 1.82 | 0.8 | 9587 | 100 |
| passive natural adaptive immunity | 1.6 | 0.5 | 4662 | 82 |
| example natural passive immunity | 0.48 | 0.5 | 9490 | 41 |
| natural passive immunity definition | 1.17 | 1 | 8602 | 11 |
| naturally acquired active immunity vs passive | 0.43 | 0.9 | 2071 | 80 |
| natural acquired passive immunity | 1.88 | 0.4 | 4154 | 87 |
