| Similarity | Rank | |
|---|---|---|
| epidemics | 0.921 | 38845 |
| pandemic | 0.910 | 22984 |
| outbreaks | 0.807 | 18613 |
| epidemic | 0.787 | 11823 |
| influenza | 0.784 | 17313 |
| bioterrorism | 0.763 | 81986 |
| Ebola | 0.762 | 80746 |
| famines | 0.758 | 70305 |
| disasters | 0.752 | 10143 |
| tsunamis | 0.751 | 54433 |
| cholera | 0.749 | 32882 |
| H1N1 | 0.748 | 28204 |
| catastrophes | 0.747 | 37343 |
| outbreak | 0.735 | 11607 |
| food-borne | 0.733 | 89987 |
| dengue | 0.730 | 44634 |
| malaria | 0.729 | 14990 |
| smallpox | 0.727 | 39417 |
| crises | 0.726 | 13695 |
| measles | 0.720 | 31884 |
| drug-resistant | 0.720 | 67927 |
| SARS | 0.717 | 46429 |
| extinctions | 0.712 | 71406 |
| communicable | 0.712 | 53049 |
| antibiotic-resistant | 0.711 | 89764 |