A Sudanese mother holds her baby waiting for food at a malnutrition and feeding center at the Yida refugee camp along the border with North Sudan June 29, 2012 in Yida, South Sudan. Yida refugee camp has swollen to nearly 60,000 as the refugees flee from South Kordofan in North Sudan. The rainy season has increased the numbers of sick children suffering from diarrhea and severe malnutrition as the international aid community struggles to provide basic assistance to the growing population, with most arriving with only the clothes they are wearing. Many of the new arrivals walked up to 2 weeks or more to reach the camp. By Paula Bronstein/Getty Images.