Related by context. Frequent words. (Click for all words.) 84 bird flu 80 avian flu 78 avian influenza 77 bird flu outbreaks 74 H#N# bird flu 72 Bird flu 71 bird flu virus 69 outbreak 69 H#N# virus 67 H#N# 65 bird flu pandemic 65 H#N# strain 63 deadly H#N# strain 63 Bird Flu 62 swine flu 61 flu pandemic 61 influenza pandemic 60 H#N# flu 60 swine flu virus 60 outbreaks 60 poultry 60 swine flu outbreak 59 SARS 58 pandemic 57 poultry farms 57 mad cow disease 57 mad cow 56 swine flu pandemic 56 H#N# pandemic 56 H#N# swine flu 56 Severe Acute Respiratory Syndrome 56 pandemic flu 56 SARS outbreak 55 swine influenza 55 Swine flu 55 H#N# influenza 55 swine flu epidemic 55 pandemic influenza 55 cholera outbreak 54 mosquito borne disease 54 Swine Flu 54 influenza 54 flu virus 53 flu 53 SARS virus 52 flu epidemic 51 West Nile virus 51 FMD 51 CWD 50 virus 50 SARS epidemic 50 West Nile 49 Ebola 49 Sars 49 dengue 49 rabies 49 salmonella 48 influenza virus 48 contagious disease 48 Flu 48 superbug 47 West Nile Virus 47 Influenza 47 Tamiflu 46 dengue fever 46 epidemics 46 E. coli outbreak 46 vaccinate 46 WNV 46 epidemic 46 vaccination 45 culling 45 highly contagious 45 cholera 45 infection 45 dengue cases 45 measles 45 disease 45 vCJD 44 salmonella outbreak 44 chronic wasting 44 E.coli 44 Rabies 44 chickens 44 whooping cough 44 Dengue 44 WHO 44 quarantines 44 infections 43 vaccinating 43 pandemic strain 43 flash floods 43 communicable disease 43 TB 43 vaccinated 43 mumps 43 swine flu vaccine 43 severe acute respiratory 42 OIE 42 quarantine 42 vaccinations