Related by context. Frequent words. (Click for all words.) 67 measles 59 typhoid fever 59 chickenpox 59 pertussis 57 rubella 57 polio 57 whooping cough 56 meningitis 56 smallpox 56 tetanus 56 yellow fever 54 chicken pox 53 malaria 53 influenza 53 vaccination 52 vaccinated 52 typhoid 52 immunized 52 diarrhea 51 Measles 51 meningococcal disease 51 pneumonia 51 Polio 50 Whooping cough 50 tuberculosis 50 rotavirus 49 vaccinations 49 polio virus 49 unvaccinated 49 bacterial meningitis 49 cholera 49 vaccines 49 immunization 49 dysentery 48 rabies 48 measles mumps 48 flu 48 mumps 48 seasonal influenza 47 vaccine 47 penicillin 47 hepatitis B 47 H#N# 47 vaccinate 46 inoculations 46 encephalitis 46 bubonic plague 46 fevers 46 polio vaccine 46 Vaccination 45 antibiotics 45 pneumococcal disease 45 leprosy 45 seasonal flu 45 preventable diseases 45 influenza virus 45 respiratory infections 45 distemper 45 flu vaccination 45 disease 44 immunizations 44 syphilis 44 scabies 44 waterborne disease 44 vaccinating 44 colds 44 Ebola 44 H#N# influenza virus 44 smallpox vaccine 44 monkeypox 44 tuberculosis TB 44 infection 43 H#N# influenza 43 gastroenteritis 43 flu epidemic 43 H#N# virus 43 inoculation 43 H#N# flu 43 Vaccinations 43 gonorrhea 43 Hepatitis B 43 influenza viruses 43 Prevnar 43 respiratory infection 43 viral meningitis 43 contagious disease 43 flu strains 42 RSV 42 mosquito borne disease 42 strep 42 antibiotic 42 hepatitis 42 Tuberculosis 42 Dengue fever 42 severe diarrhea 42 H#N# strain 42 swine flu 42 flu vaccine 42 herpes 42 Pneumonia 41 H#N# swine flu