Related by context. Frequent words. (Click for all words.) 62 Flu pandemic 61 Pandemic flu 58 H#N# influenza pandemic 57 Bird flu 57 Cholera outbreak 57 birdflu 56 measles epidemic 56 Seasonal influenza 56 AH#N# 55 swine flu pandemic 55 BIRD FLU 55 Swine flu 54 pandemic 54 SWINE FLU 53 epidemic 53 Avian flu 53 H#N# flu pandemic 53 Avian influenza 52 bird flu outbreak 52 dengue outbreak 52 H#N# Swine Flu 51 Flu Pandemic 51 bird flu epidemic 51 H#N# pandemic 51 Meningococcal disease 51 bird flu 51 H#N# avian flu 51 swine flue 51 Swine Flu 51 WHO 50 Swine flu vaccine 50 polio outbreak 50 Ebola outbreak 50 bluetongue disease 50 avian flu 50 dengue epidemic 50 swine flu epidemic 50 avian flu outbreaks 50 A/H#N# 50 Antibiotic resistance 50 H#N# 49 Sars epidemic 49 Influenza A/H#N# 49 Flu 49 highly pathogenic strain 49 Rift Valley Fever 49 Diarrhoea 49 pandemic H#N# virus 49 A/H#N# influenza 49 A/H#N# flu 49 Meningococcal 49 swine flu 49 H#N# Virus 49 A/H#N# flu cases 49 outbreak 49 Avian Flu 48 Pandemics 48 bird flu pandemic 48 Tuberculosis TB 48 Superbug 48 epidemics 48 Chickenpox 48 Whooping Cough 48 Severe acute respiratory 48 insect borne diseases 48 influenza A/H#N# 48 flu pandemic 48 Infectious diseases 48 Severe Acute Respiratory Syndrome 48 mosquito borne disease 48 influenza pandemic 48 Dengue fever 48 Diphtheria 47 Gastroenteritis 47 dengue fever outbreak 47 FMD outbreak 47 pandemic H#N# 47 flu outbreak 47 avian influenza outbreak 47 Influenza Pandemic 47 H#N# Flu 47 H#N# avian influenza 47 H#N# bird flu 47 measles outbreak 47 Superbugs 47 Cyberattacks 47 Bird Flu 47 Leptospirosis 47 H#N# swine flu 46 H#N# flu 46 H#N# swine 46 VACCINE 46 Indonesian volcano erupts 46 Bird Flu Vaccine 46 A/H#N# flu virus 46 influenza pandemics 46 Respiratory Syndrome 46 H#N# influenza strain 46 Dengue 46 bird flu outbreaks 46 Influenza Vaccine