| Similarity | Rank | |
|---|---|---|
| H1N1 | 0.813 | 92062 |
| bird_flu | 0.776 | 79601 |
| flu | 0.751 | 15100 |
| influenza | 0.730 | 26018 |
| avian_influenza | 0.707 | 99042 |
| measles | 0.686 | 26034 |
| dengue_fever | 0.678 | 87089 |
| dengue | 0.678 | 47346 |
| the_Ebola_virus | 0.677 | 74773 |
| hepatitis_A | 0.657 | 96413 |
| Ebola | 0.657 | 11439 |
| pandemic | 0.648 | 26455 |
| outbreak | 0.645 | 10943 |
| salmonella | 0.640 | 79933 |
| meningitis | 0.638 | 44343 |
| food_poisoning | 0.637 | 69750 |
| influenza_virus | 0.635 | 75849 |
| an_outbreak | 0.622 | 99315 |
| anthrax | 0.622 | 45883 |
| smallpox | 0.619 | 53441 |
| an_outbreak_of | 0.612 | 92417 |
| typhoid | 0.612 | 80304 |
| Lyme_disease | 0.609 | 50740 |
| virus | 0.605 | 2593 |
| MERS | 0.603 | 87705 |