| Similarity | Rank | |
|---|---|---|
| vaccine | 0.803 | 8077 |
| pertussis | 0.797 | 61015 |
| vaccines | 0.794 | 12666 |
| rubella | 0.786 | 67849 |
| Measles | 0.783 | 93119 |
| meningococcal | 0.776 | 89555 |
| Gardasil | 0.774 | 69039 |
| mumps | 0.773 | 63582 |
| pneumococcal | 0.771 | 77954 |
| vaccination | 0.768 | 15659 |
| varicella | 0.760 | 92938 |
| rotavirus | 0.755 | 82713 |
| measles | 0.754 | 31884 |
| immunisation | 0.753 | 73736 |
| H1N1 | 0.747 | 28204 |
| thimerosal | 0.734 | 91384 |
| Vaccination | 0.726 | 59890 |
| immunization | 0.724 | 31040 |
| Hepatitis | 0.720 | 29506 |
| influenza | 0.717 | 17313 |
| vaccinated | 0.717 | 25412 |
| unvaccinated | 0.717 | 91641 |
| meningitis | 0.714 | 30455 |
| tetanus | 0.711 | 48712 |
| Vaccine | 0.710 | 39825 |