Doctors treating the teenage survivors say 20 per cent have exhibited signs of post traumatic stress disorder and could require long-term counseling and psychiatric help.
Jang Dong-woon, a father speaking on behalf of other parents of the students who survived, told reporters that their children should also be recognized as victims, and not just labelled “lucky” survivors.
"They say they feel like sinners," Jang said, describing an overbearing sense of survivors’ guilt among many of the students. "We should take responsibility for and take care of all of them — those who are still missing, those who are dead and those who have survived," he said.
Some of the children are so traumatised that they even have difficulty being close to windows, fearing “that the water will suddenly rush in,” he added.
A total of 352 Danwon High students were on the ferry and the huge loss of life has devastated the city of Ansan, south of Seoul, where the school is located.