Sudanese refugees are facing an unprecedented humanitarian disaster with an average of five children dying per day in the Yida camp in Unity State, home to 55,000 refugees, according to data from MSF. John Stanmeyer documents the devastating conditions at Yida, where an extremely high level of deaths are resulting from diarrhea and malaria which are spreading through the refugee camp, creating a health catastrophe. There are not enough toilets, fresh water or adequate sanitation in the camp. These conditions are causing diseases to spread rapidly and have created, in recent months, one of the worst emergency health situations in the world.