| Similarity | Rank | |
|---|---|---|
| vaccine | 0.806 | 8601 |
| immunisation | 0.777 | 21651 |
| diphtheria | 0.771 | 24994 |
| measles | 0.766 | 15295 |
| rubella | 0.763 | 36198 |
| vaccinate | 0.762 | 25748 |
| cowpox | 0.756 | 85609 |
| immunization | 0.743 | 37647 |
| infection | 0.735 | 2615 |
| immunise | 0.730 | 26499 |
| polio | 0.728 | 19165 |
| tuberculosis | 0.722 | 11298 |
| malaria | 0.714 | 12850 |
| tetanus | 0.711 | 19763 |
| disease | 0.705 | 1059 |
| hiv | 0.702 | 4107 |
| smallpox | 0.700 | 18530 |
| inoculation | 0.696 | 25467 |
| eradication | 0.690 | 13866 |
| prophylaxis | 0.687 | 33628 |
| influenza | 0.686 | 19463 |
| parenteral | 0.685 | 37046 |
| ibuprofen | 0.685 | 96884 |
| hepatitis | 0.684 | 7631 |
| sexually-transmitted | 0.684 | 64953 |