http://www.medicaldaily.com/articles/14831/20130423/second-child-dead-parents-rely-prayer-heal-judge.htm
I think any adult who wants to ignore medical care has that right, based on any reason they so choose.
I think denying medical care to a child should be illegal, even to a child old enough to say "No, you can't save my life with a blood transfusion!"
The parents in that article should be locked up and the key thrown away. There children should be taken care of by someone who won't piously watch them die.