NEW : Lula flew over some of the flooded areas last week and proclaimed the disaster one of the worst in the country 's history . WHO warn about health risks of flood - contaminated water , food . Floods in southern Brazil accounted for 112 deaths , the news agency says . 300 people homeless , 19 missing ; landslides caused much of the damage . Brazilian government sent almost $ 1 billion in aid to affected areas .
NEW : WHO warn about health risks of flood - contaminated water , food . Floods in southern Brazil accounted for 112 deaths , the news agency says . 300 people homeless , 19 missing ; landslides caused much of the damage . Brazilian government sent almost $ 1 billion in aid to affected areas .