Related by context. Frequent words. (Click for all words.) 80 bacterial meningitis 73 Meningitis 69 measles 68 whooping cough 68 chickenpox 64 mumps 63 pertussis 63 pneumonia 62 chicken pox 61 diarrhea 61 tuberculosis 61 swine flu 61 encephalitis 60 bacterial infection 59 malaria 59 infection 59 influenza 59 H#N# 59 H#N# virus 58 flu 57 MRSA 57 hepatitis 56 Ebola 56 disease 56 gastroenteritis 56 cholera 56 leukemia 56 polio 55 superbug 55 Hepatitis 55 rabies 55 illness 54 tetanus 54 respiratory illness 54 H#N# flu 54 West Nile 54 infections 54 Swine Flu 53 cervical cancer 53 dengue fever 53 highly contagious 53 H#N# swine flu 52 Swine flu 52 dengue 52 swine flu virus 52 bird flu 52 kidney failure 52 Hepatitis B 52 H#N# influenza 52 hepatitis B 52 TB 52 flu virus 52 viral infection 52 H#N# strain 51 seasonal influenza 51 strep throat 51 jaundice 51 Influenza 50 sepsis 50 typhoid 50 West Nile virus 50 cystic fibrosis 50 Tuberculosis 50 respiratory infections 50 staph infection 50 botulism 50 yellow fever 50 virus 50 Lyme disease 50 Rabies 50 fevers 49 vaccinated 49 avian influenza 49 Flu 49 herpes 49 lymphoma 49 E. coli 49 cancer 49 chlamydia 49 illnesses 48 bronchitis 48 Polio 48 bacterial infections 48 avian flu 48 norovirus 48 salmonella 48 seasonal flu 47 West Nile Virus 47 sudden cardiac arrest 47 bird flu virus 47 sexually transmitted disease 47 vaccination 47 bowel cancer 46 liver disease 46 infectious disease 46 lung disease 46 H#N# bird flu 46 sore throat 46 epilepsy 46 mosquito bites 46 brain tumor