Related by context. Frequent words. (Click for all words.) 59 malaria cholera 58 insect borne diseases 57 cholera dysentery 57 waterborne illness 56 bilharzia 56 borne diseases 55 worm infestation 55 diarrhea dysentery 55 waterborne illnesses 54 borne illnesses 54 typhoid cholera 54 water borne diseases 54 malaria diarrhea 53 malaria dengue 53 Bacterial infections 53 cholera epidemics 52 intestinal infections 52 malaria dengue fever 52 vector borne 52 epidemics 52 malaria measles 51 Schistosomiasis 51 recontamination 51 Buruli ulcer 51 Soil erosion 50 diarrheal 50 waterborne disease 50 seawater intrusion 50 pest infestations 50 diarrheal disease 49 waterborne diseases 49 unplanned urbanization 49 faecal contamination 49 harmful microorganisms 49 tsetse flies 49 epizootic 49 locust infestation 48 Kala azar 48 cholera 48 microbial pathogens 48 schistosomiasis 48 malarial mosquitoes 48 sicken humans 47 giardiasis 47 avian botulism 47 transmitted diseases 47 mosquito borne 47 outbreaks 47 tick borne 47 chikungunya virus 47 wild poliovirus 47 toxic algae blooms 47 poorly nourished 47 cholera outbreaks 47 preventives 47 parasitic disease 47 salination 47 dengue fever outbreak 47 e coli bacteria 46 giardia 46 spraying insecticides 46 cholera typhoid 46 deadly H#N# avian 46 avian influenza H#N# 46 groundwater depletion 46 melioidosis 46 malnutrition 46 maternal morbidity 46 cardio vascular diseases 46 recharge groundwater 46 Cholera outbreak 46 pest infestation 46 malarial 45 Zambezi valley 45 pneumonia bronchitis 45 mosquito transmitted 45 stagnant pools 45 epidemic 45 lymphatic filariasis 45 malaria 45 hookworm 45 trypanosomiasis 45 Cholera epidemic 45 vibrio 45 reinfection 45 leptospirosis 45 parasitic infections 45 mosquito borne diseases 44 Aedes mosquitoes 44 diarrhea pneumonia 44 canine parvovirus 44 seroprevalence 44 ciguatera 44 onchocerciasis 44 E coli bacteria 44 measles polio 44 Precautionary measures 44 epidemiological surveillance 44 dengue fever 44 Rift Valley Fever 44 salmonella E. coli