Each year more than 10 million children in the United States endure the trauma of abuse, violence, natural disasters, and other adverse events. These experiences can give rise to significant emotional and behavioral problems that can profoundly disrupt the children’s lives and bring them in contact with child-serving systems.

For therapists, child welfare workers, case managers, and other helping professionals involved in the care of traumatized children and their families, the essential act of listening to trauma stories may take an emotional toll that compromises professional functioning and diminishes quality of life.

Individual and supervisory awareness of the impact of this indirect trauma exposure—referred to as secondary traumatic stress (STS)—is a basic part of protecting the health of the worker and ensuring that children consistently receive the best possible care from those who are committed to helping them.

Source: http://www.nctsn.org/resources/topics/secondary-traumatic-stress