Over 35 states have laws which give some greater leeway to "faith-healing" parents to engage in medical neglect of their children.
For every child that dies in a so-called "faith-healing" home, many children suffer horrible pain but survive. Liz Heywood describes the agonizing pain she suffered as well as psychic trauma resulting from so-called "faith-healing" to author Sean Faircloth, author of Attack of the Theocrats and Dir. of Strategy and Policy for the Richard Dawkins Foundation US. There are numerous "faith-healing" congregations. Christian Scientists are the most well known.
This video contains graphic descriptions of physical harm.