| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| disease outbreaks in history | 1.71 | 0.6 | 8530 | 17 | 28 |
| disease | 0.03 | 0.8 | 3553 | 41 | 7 |
| outbreaks | 0.93 | 0.3 | 1578 | 71 | 9 |
| in | 1.75 | 0.3 | 7036 | 19 | 2 |
| history | 1.96 | 0.9 | 6607 | 85 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| disease outbreaks in history | 0.8 | 0.3 | 3384 | 59 |
| major disease outbreaks in history | 0.67 | 0.1 | 8366 | 94 |
| infectious disease outbreaks in history | 1.25 | 0.9 | 5040 | 33 |
| deadliest disease outbreaks in history | 1.58 | 0.5 | 5570 | 98 |
| biggest outbreaks of disease in history | 1 | 0.2 | 2580 | 32 |
| worst disease outbreaks in history | 1.06 | 0.3 | 281 | 89 |
| biggest outbreaks in history | 1.44 | 0.9 | 3304 | 25 |
| infectious outbreaks in history | 1.25 | 0.5 | 4088 | 6 |
| major virus outbreaks in world history | 1.8 | 0.6 | 2878 | 17 |
| bacterial outbreaks in history | 0.19 | 0.3 | 3497 | 77 |
| viruses outbreaks in history | 0.79 | 1 | 4429 | 93 |
| viruses in historical outbreaks | 0.09 | 1 | 1153 | 81 |
| worst outbreaks in history | 1.67 | 0.1 | 7063 | 91 |
| disease epidemics in history | 1.14 | 0.8 | 543 | 53 |
| major diseases in history | 1.05 | 0.7 | 6753 | 55 |
| viral outbreaks in history | 1.23 | 0.7 | 3304 | 97 |
| most recent disease outbreaks | 1.39 | 1 | 6401 | 2 |
| the year of the first modern outbreak | 1.61 | 1 | 966 | 4 |
| what year was outbreak made | 0.25 | 0.2 | 82 | 99 |
