Related by context. Frequent words. (Click for all words.) 78 Seasonal flu 65 seasonal influenza 64 seasonal flu 63 Cervical cancer 63 Rotavirus 62 Whooping cough 61 Flu vaccines 59 Bacterial meningitis 59 Lung cancer 58 Pertussis 57 influenza 57 Swine flu 57 Swine flu vaccine 57 mosquito borne disease 56 Flu 56 Ovarian cancer 56 Multiple myeloma 56 Tetanus 55 Dengue fever 55 Colorectal cancer 55 H#N# 55 Monkeypox 55 Flu shots 55 Flu viruses 55 Pneumonia 54 pandemic H#N# 54 Flu vaccine 54 influenza virus 54 mosquito borne illness 54 injectable vaccine 54 Prostate cancer 53 pertussis 53 flu virus 53 Avian influenza 53 Staph infections 53 flu 53 Pandemics 53 H#N# strain 53 Whooping Cough 53 pneumococcus 53 H#N# vaccine 52 Listeriosis 52 virus infects 52 H#N# swine flu 52 flu strains 52 mosquito borne virus 52 pandemic 52 whooping cough 52 Measles 52 Rabies 52 diarrheal disease 52 H#N# flu 52 Hantavirus 52 Bird flu 52 H#N# flu pandemic 52 pandemic strain 52 flu viruses 51 Avian flu 51 swine flu vaccine 51 Diarrhoea 51 mosquito borne 51 flu vaccines 51 Cardiovascular disease 51 swine flu virus 51 Influenza 51 rotavirus 51 meningococcal disease 51 virus mutates 51 Pancreatic cancer 51 Botulism 50 vaccine preventable diseases 50 parasitic disease 50 vaccine 50 H#N# virus 50 nasal vaccine 50 Streptococcus pneumoniae 50 shigella 50 H#N# influenza virus 50 respiratory syncytial virus 50 H#N# Flu 50 flu vaccinations 50 measles 50 vaccinated 50 acute watery diarrhea 50 respiratory viruses 50 Breast cancer 50 Chagas disease 50 Cigarette smoking 50 A/H#N# 49 Clostridium difficile infection 49 waterborne disease 49 preventable illnesses 49 herpes zoster 49 Secondhand smoke 49 Spanish flu pandemic 49 Encephalitis 49 Sleep apnea 49 Japanese encephalitis 49 pandemic flu 49 pneumococcal disease 49 virus