Related by context. Frequent words. (Click for all words.) 58 prolonged droughts 56 Droughts 56 Seasonal rains 53 cholera epidemics 53 periodic droughts 53 Outbreaks 52 Pandemics 52 droughts 51 epidemics 51 Volcanic eruptions 50 floods droughts 50 Severe drought 50 Genital herpes 49 outbreaks 49 famines 49 cholera outbreaks 49 Epidemics 48 Peanut allergy 48 Algae blooms 47 malaria cholera 47 Anxiety disorders 47 diarrheal 47 El Niños 47 influenza epidemics 47 Insurgencies 46 Bubonic plague 46 occasional flare ups 46 avian influenza outbreaks 46 nutritional deficiency 46 aridity 46 Infestations 46 Urinary tract infections 46 falciparum malaria 46 Ebola hemorrhagic fever 46 curable diseases 46 heatwaves 46 Ice jams 46 Kala azar 46 Birth defects 46 Iron deficiency 46 Mental disorders 46 La Nina cooling 46 subtropical regions 45 Ethnic clashes 45 Neuropathic pain 45 Buruli ulcer 45 Diarrhoea 45 Binge eating 45 upsurges 45 Disturbances 45 inundations 45 scarcities 45 internecine fighting 45 river deltas 45 El Ninos 45 frequent droughts 44 Viral meningitis 44 Noroviruses 44 ethnic bloodletting 44 Heavy monsoon rains 44 Monsoon rains 44 sporadic outbreaks 44 dry spells 44 harmful algal blooms 44 La Nina phenomenon 44 Soil erosion 44 Deadly stampedes 44 Devastating floods 44 Banditry 44 haemorrhagic fever 44 cyclones 44 instability 43 phytoplankton blooms 43 worsening droughts 43 pneumococcal infections 43 monsoon rainfall 43 Sectarian violence 43 malaria diarrhea 43 Obstructive sleep apnea 43 unrest 43 droughts floods 43 hyperinsulinemia 43 internecine conflict 43 unpredictable 43 virulent strains 43 Anorexia nervosa 43 Disunity 43 drier summers 43 devastations 43 paralysis muscular atrophy 43 desert locusts 43 communal strife 43 Cholera outbreak 43 pneumonias 43 Rapid urbanization 43 Voter apathy 43 Melting glaciers 43 Distemper 43 Hijackings 42 upwellings 42 toxic algae blooms