| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how effective is the flu shot this season | 1.36 | 0.5 | 9887 | 27 |
| how long is the seasonal flu shot effective | 1.92 | 0.6 | 1785 | 43 |
| how effective is flu shot this year | 1.49 | 0.2 | 7557 | 12 |
| how effective is this year's flu shot | 0.14 | 1 | 5793 | 96 |
| how effective is the current flu shot | 1.02 | 0.7 | 8275 | 63 |
| how effective is the flu shot | 0.63 | 1 | 145 | 62 |
| when is the flu shot effective | 1.82 | 0.5 | 6255 | 78 |
| effectiveness of flu shot this year | 0.14 | 0.4 | 7173 | 66 |
| effectiveness of this year's flu shot | 1.01 | 0.7 | 4745 | 25 |
| seasonal flu vaccine effectiveness | 1.95 | 0.1 | 3722 | 36 |
