Refugees sit in a straw hut at the Yida refugee camp in south Sudan on August 24, 2012 to learn about basic sanitation and hand washing. Poor sanitation in the camp of over 60,000 people has led to diahrreal diseases and exacerbated existing malnutrition problems. The camp is already home to over 60,000 people that have fled violence in Sudan's southern regions, with around 1000 people a day coming in during crisis time and around a hundred a day in recent weeks. Supplies of food and aid at the site are very overstretched, causing a lack of sanitation, food shortages, and the spread of diseases. AFP PHOTO/Hannah Mc'NEISH (Photo credit should read HANNAH MACNEISH/AFP/GettyImages)
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