Related by context. Frequent words. (Click for all words.) 67 Cholera outbreak 66 cholera outbreak 63 cholera 58 waterborne disease 57 polio outbreak 57 Ebola outbreak 57 cholera epidemic 57 diarrheal disease 56 Cholera 55 cholera outbreaks 54 Myanmar cyclone 53 Diarrhoea 52 H#N# avian flu 52 acute diarrhea 52 mosquito borne disease 52 acute watery diarrhea 52 Swine flu 52 Dengue fever 52 measles outbreak 51 Rift Valley Fever 50 Marburg virus 50 Salmonella outbreak 50 HIV AIDS epidemic 50 Bird flu 50 Artibonite River 50 superbug 50 mosquito borne illness 50 Meningococcal disease 50 Aids epidemic 50 Health Organization 49 birdflu 49 Superbug 49 epidemic 49 influenza A/H#N# 49 AIDS epidemic 49 waterborne diseases 49 malaria 49 flu outbreak 49 A/H#N# flu cases 48 A/H#N# influenza 48 dengue outbreak 48 Chikungunya 48 Listeriosis 48 bird flu 48 H#N# 48 Malnutrition 48 Ebola 48 Haiti 48 swine flu 48 swine flu outbreak 48 outbreak 47 AIDS pandemic 47 H#N# Virus 47 WHO 47 H#N# avian influenza 47 swine flue 47 Whooping Cough 47 Escalating violence 47 mumps outbreak 47 HIV AIDS prevalence 47 Avian flu 47 H#N# bird flu 47 Leptospirosis 47 Aids pandemic 47 parasitic disease 47 Sectarian violence 47 dengue fever 47 salmonella infection 47 UNAids 47 avian flu virus 47 A/H#N# 47 Malaria 47 HIV AIDS pandemic 46 Maternal mortality 46 H#N# virus 46 Tropical Storm Agatha 46 pandemic H#N# 46 borne illnesses 46 Byrs 46 bird flu virus 46 epidemiologists 46 bird flu outbreak 46 virulent H#N# strain 46 Swine flu vaccine 46 swine flu virus 46 HIV AIDS 46 diarrheal diseases 46 Infectious disease 46 kala azar 46 highly pathogenic H#N# strain 46 E.Coli 46 malnutrition 46 Cyclone Aila 46 mosquito borne virus 46 H#N# swine flu 46 AIDS 46 deadly H#N# virus 46 bird flu strain 45 HIV Aids pandemic 45 Health Organization WHO 45 tuberculosis TB