The condition the three children were suffering from meant they were unable to talk or walk and were slowly dying.
It has been described as an incredibly debilitating disorder.
The four-year-old girl was diagnosed first followed by the younger twin boys.
More top news
People living in east London are being told to keep their windows and doors shut after a large fire at an industrial estate in east London.
The parents of a one of three graffiti artists hit by a train at Loughborough Junction have paid tribute to their son.
A school with fees of £8,000 a term has been criticised for including a lunch of baked potatoes in an "austerity day".