Related by context. Frequent words. (Click for all words.) 67 cholera outbreak 64 cholera epidemic 61 cholera 58 waterborne disease 55 acute diarrhea 55 mosquito borne disease 54 monsoon floods 53 Aids epidemic 53 dengue outbreak 52 Cyclone Sidr 52 diarrheal disease 52 Dengue fever 52 Cyclone Aila 52 swine flu pandemic 51 acute watery diarrhea 51 dengue fever 51 Marburg virus 51 Diarrhoea 50 Cholera 50 Myanmar cyclone 50 Dengue 50 malaria 49 dengue 49 swine flu outbreak 49 pandemic 49 HIV AIDS pandemic 49 epidemics 49 cholera outbreaks 49 mosquito borne illness 49 swine flu virus 49 Tropical Storm Noel 49 outbreak 49 H#N# pandemic 49 Rift Valley Fever 49 epidemic 49 Haiti 49 flu outbreak 49 Hurricane Tomas 49 H#N# flu pandemic 49 HIV Aids pandemic 49 Typhoon Ketsana 48 bird flu strain 48 H#N# avian flu 48 Tropical Storm Agatha 48 Swine flu 48 swine flu epidemic 48 cyclone Nargis 48 waterborne diseases 48 Chikungunya 48 diarrheal diseases 48 Health Organization 48 A/H#N# flu 48 Malaria 48 bird flu epidemic 48 virulent H#N# strain 47 AIDS pandemic 47 AIDS epidemic 47 Tropical Storm Jeanne 47 Avian flu 47 floods landslides 47 chronically hungry 47 Leptospirosis 47 mosquito borne virus 46 water borne diseases 46 bird flu 46 swine flu 46 death toll 46 disease 46 H#N# strain 46 Aids pandemic 46 Japanese encephalitis 46 Health Organisation WHO 46 flu epidemic 46 acute respiratory infections 46 HIV AIDS epidemic 46 A/H#N# 46 H#N# swine flu 46 avian flu 46 postelection violence 45 mumps outbreak 45 overflowing rivers 45 H#N# virus 45 Bird flu 45 Cyclone Nargis 45 Typhoon Parma 45 influenza pandemic 45 flu pandemic 45 Haitians 45 WHO 45 outbreaks 45 pandemic H#N# 45 HIV AIDS prevalence 45 Tuberculosis TB 45 Health Organisation 45 chikungunya 45 Haitian earthquake 45 malnutrition 45 Ketsana 44 humanitarian crises 44 A/H#N# virus 44 undernutrition