| Similarity | Rank | |
|---|---|---|
| outbreaks | 0.858 | 18613 |
| cholera | 0.787 | 32882 |
| pandemic | 0.780 | 22984 |
| Outbreak | 0.777 | 78213 |
| epidemics | 0.775 | 38845 |
| epidemic | 0.773 | 11823 |
| smallpox | 0.757 | 39417 |
| measles | 0.742 | 31884 |
| pandemics | 0.735 | 81261 |
| typhus | 0.733 | 89011 |
| influenza | 0.733 | 17313 |
| typhoid | 0.723 | 52227 |
| flu | 0.702 | 7168 |
| SARS | 0.702 | 46429 |
| H1N1 | 0.700 | 28204 |
| salmonella | 0.699 | 40541 |
| Cholera | 0.696 | 87357 |
| flare-up | 0.696 | 73470 |
| Ebola | 0.691 | 80746 |
| Salmonella | 0.691 | 34491 |
| Measles | 0.685 | 93119 |
| encephalitis | 0.683 | 57536 |
| meningitis | 0.682 | 30455 |
| food-borne | 0.680 | 89987 |
| botulism | 0.676 | 75406 |