| Similarity | Rank | |
|---|---|---|
| pneumococcal | 0.918 | 77954 |
| meningococcal | 0.884 | 89555 |
| influenza | 0.880 | 17313 |
| vaccine | 0.879 | 8077 |
| pertussis | 0.871 | 61015 |
| measles | 0.871 | 31884 |
| rubella | 0.857 | 67849 |
| varicella | 0.852 | 92938 |
| vaccines | 0.850 | 12666 |
| meningitis | 0.839 | 30455 |
| gastroenteritis | 0.834 | 75608 |
| mumps | 0.833 | 63582 |
| hepatitis | 0.831 | 17386 |
| H1N1 | 0.826 | 28204 |
| drug-resistant | 0.822 | 67927 |
| diphtheria | 0.815 | 65182 |
| dengue | 0.814 | 44634 |
| toxoplasmosis | 0.813 | 95177 |
| unvaccinated | 0.813 | 91641 |
| vaccination | 0.808 | 15659 |
| chickenpox | 0.807 | 55566 |
| pneumoniae | 0.805 | 74277 |
| immunization | 0.800 | 31040 |
| HBV | 0.799 | 60733 |
| malaria | 0.795 | 14990 |