| Similarity | Rank | |
|---|---|---|
| swine_flu | 0.813 | 73020 |
| influenza | 0.792 | 26018 |
| flu | 0.753 | 15100 |
| bird_flu | 0.718 | 79601 |
| influenza_virus | 0.713 | 75849 |
| avian_influenza | 0.706 | 99042 |
| pandemic | 0.686 | 26455 |
| hepatitis_A | 0.685 | 96413 |
| Ebola | 0.685 | 11439 |
| measles | 0.680 | 26034 |
| dengue | 0.670 | 47346 |
| hepatitis_B | 0.655 | 43484 |
| the_Ebola_virus | 0.649 | 74773 |
| dengue_fever | 0.648 | 87089 |
| MERS | 0.638 | 87705 |
| MRSA | 0.638 | 50269 |
| outbreak | 0.633 | 10943 |
| smallpox | 0.624 | 53441 |
| hepatitis | 0.619 | 32841 |
| meningitis | 0.609 | 44343 |
| vaccine | 0.608 | 5124 |
| viral_infection | 0.607 | 53485 |
| SARS | 0.607 | 52517 |
| communicable_disease | 0.604 | 59999 |
| anthrax | 0.603 | 45883 |