severe economic severe economic crisis severe economic downturn severe eczema severe effect severe effects severe emotional severe enough to require severe environmental severe erosion severe eye severe facial severe fall severe famine severe fatigue severe fever severe financial severe financial crisis severe financial problems severe fire severe flood severe flooding severe floods severe food severe food insecurity severe form severe forms severe frost severe frostbite severe gale severe gastrointestinal severe harm severe head severe head injuries severe head injury severe head trauma severe headache severe headaches severe health severe health problems severe hearing loss severe heart severe heart attack severe heart disease severe heart failure severe heat severe hemophilia severe hepatic severe hepatic impairment severe housing severe human severe humanitarian severe hunger severe hypersensitivity reactions severe hypertension severe hypoglycemia severe hypotension severe hypothermia severe illness severe illnesses severe impact severe impacts severe impairment severe infection severe infections severe inflammation severe injuries severe injury severe insomnia severe intellectual severe internal severe internal injuries severe intestinal severe irritation severe issues severe it severe itching severe joint severe kidney severe kidney disease severe kidney problems severe knee severe lacerations severe lack severe learning severe limitation severe limitations severe liver severe liver damage severe liver disease severe liver impairment severe liver problems severe local severe loss severe losses severe low severe lung severe malaria severe malnutrition