| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when was the spanish flu | 0.23 | 0.9 | 9267 | 67 |
| when was the spanish flu epidemic | 0.84 | 0.1 | 2427 | 33 |
| when was the spanish flu pandemic | 1.39 | 0.3 | 5009 | 90 |
| when was the spanish flu outbreak | 0.08 | 0.3 | 4364 | 14 |
| when was the spanish flu begin | 0.09 | 0.2 | 4343 | 23 |
| when was the spanish flu discovered | 1.45 | 0.8 | 7073 | 5 |
| when was the spanish flu ended | 1.42 | 0.1 | 2623 | 70 |
| when was the spanish flu vaccine created | 1.39 | 0.2 | 4657 | 37 |
| when was the spanish flu started | 1.87 | 0.5 | 975 | 91 |
| when was the spanish flu in canada | 0.79 | 0.3 | 5570 | 11 |
| when was the spanish flu virus | 1.98 | 0.4 | 7527 | 20 |
| when was the spanish flu in america | 0.97 | 0.9 | 9705 | 29 |
| spanish flu epidemic 1918 | 1.44 | 0.4 | 2183 | 57 |
| spanish flu pandemic | 1.64 | 0.8 | 8688 | 43 |
| spanish flu deaths | 1.94 | 0.1 | 3833 | 25 |
| how long did the spanish flu last | 0.25 | 0.1 | 4348 | 75 |
| spanish flu 1918 | 1.89 | 1 | 6439 | 59 |
| spanish flu timeline | 2 | 0.5 | 1365 | 51 |
| spanish flu death rate | 1.59 | 0.2 | 1969 | 19 |
| how many people died from the spanish flu | 0.81 | 1 | 3659 | 82 |
