| Similarity | Rank | |
|---|---|---|
| Influenza | 0.839 | 47326 |
| Swine | 0.819 | 45975 |
| avian | 0.802 | 31486 |
| Rabies | 0.785 | 68756 |
| Flu | 0.783 | 27354 |
| Pandemic | 0.765 | 69823 |
| Vaccine | 0.753 | 39825 |
| Infectious | 0.743 | 38588 |
| H5N1 | 0.742 | 35572 |
| Vaccination | 0.728 | 59890 |
| Insect | 0.726 | 47778 |
| Measles | 0.722 | 93119 |
| Vaccines | 0.720 | 50790 |
| SARS | 0.714 | 46429 |
| Dengue | 0.712 | 81476 |
| Ebola | 0.712 | 80746 |
| Reptiles | 0.708 | 87661 |
| Bird | 0.707 | 10077 |
| Virus | 0.706 | 23295 |
| Outbreak | 0.704 | 78213 |
| Animals | 0.698 | 14448 |
| H1N1 | 0.697 | 28204 |
| influenza | 0.694 | 17313 |
| Vaccinations | 0.694 | 79444 |
| Feline | 0.693 | 52981 |