Sudanese refugees face growing health crisis A Sudanese family rests along a road they have been walking for the past three days, on July 6, 2012 along the border road inside South Sudan. Many refugees have been walking for 4 to 5 days from inside Sudan to get to Yida refugee camp from the Nuba mountain region where they have no food and are fleeing the on-going conflict. People wait in line for hours to receive medical treatment at the CARE medical clinic at the Yida refugee camp on July 5, 2012 in Yida, South Sudan. A Sudanese woman sits outside her hut on a rainy afternoon at the Yida refugee camp on July 5, 2012. Bolis Jamal, 3, stands near his temporary shelter suffering from malnutrition at the Yida refugee camp on July 1, 2012. Refugees in South Sudan are facing a nutrition and disease crisis as conflict and hunger in the neighboring Blue Nile State of Sudan continue to drive people across the border. See more of Paula Bronstein's images of the Yida refugee camp, which has a swelling population of over 60,000 people. Jonathan Miller has spent the last week in Jamam, another camp nearby, and reports below on the looming health disaster which many blame on the United Nations' failure to act sooner. Channel 4 News: Sudanese refugees tell of their flight from persecution The violence that has followed last year's division of Sudan has spawned a refugee crisis that aid workers say is the worst they have ever seen. Jonathan Miller of the UK's Channel Four News reports.