In 1999 its cardiology and cardiac surgery group stopped using the big hospital and left to build what is now called Avera Heart Hospital of South Dakota.

FORBES: Bad Medicine

Mr Colfer-Williams, who leaves a fiancee Cairo and young daughter Dakota, had been treated in Morriston hospital in Swansea for his asthma and not for measles.

BBC: Swansea measles: Grieving mother speaks of son's death

Those hurt are being treated in a hospital in Rapid City, South Dakota, according to Carver.

CNN: STORY HIGHLIGHTS