| Similarity | Rank | |
|---|---|---|
| Vaccines | 0.875 | 50790 |
| Vaccination | 0.847 | 59890 |
| Influenza | 0.847 | 47326 |
| Immunization | 0.836 | 64508 |
| Hepatitis | 0.801 | 29506 |
| Flu | 0.793 | 27354 |
| Swine | 0.791 | 45975 |
| Meningitis | 0.791 | 86325 |
| Measles | 0.789 | 93119 |
| vaccine | 0.779 | 8077 |
| Infectious | 0.779 | 38588 |
| Rabies | 0.771 | 68756 |
| Vaccinations | 0.758 | 79444 |
| Avian | 0.753 | 58666 |
| Polio | 0.749 | 70932 |
| Pandemic | 0.745 | 69823 |
| H1N1 | 0.745 | 28204 |
| vaccines | 0.742 | 12666 |
| Malaria | 0.738 | 34358 |
| Diseases | 0.734 | 21939 |
| Tuberculosis | 0.729 | 46063 |
| Epidemic | 0.728 | 67773 |
| Gardasil | 0.727 | 69039 |
| Disease | 0.726 | 8318 |
| rotavirus | 0.725 | 82713 |