Paula Bronstein / Getty Images

Sudanese girls jump rope as many look on at the Yida refugee camp along the border with North Sudan June 30, 2012 in Yida, South Sudan.

Paula Bronstein / Getty Images

New arrivals wait in long lines to register with UNHCR at the Yida refugee camp along the border with North Sudan, June 30, in Yida, South Sudan.

Water has been a precious resource with which aid agencies have struggled. Yida refugee camp has swollen to nearly 60,000, as the refugees flee from South Kordofan in North Sudan with new arrivals at 300-600 a day.  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, as most have arrived with only the clothes they are wearing. Many new arrivals walked from 5 days up to 2 weeks or more to reach the camp.

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