Worthey is hoping that eventually the hospital will be able to do sequencing in house.

FORBES: Sequencing A Child's DNA -- And Convincing An Insurance Company To Pay

Now Worthey, an assistant professor at the Medical College of Wisconsin, is part of a team working to comb through the sequences of five more children.

FORBES: Sequencing A Child's DNA -- And Convincing An Insurance Company To Pay

Geneticist Elizabeth Worthey worked on the first-ever treatment of a patient based on DNA sequencing, helping doctors decide to give a bone marrow transplant to a 6-year-old boy who had suffered through more than a hundred operations.

FORBES: Sequencing A Child's DNA -- And Convincing An Insurance Company To Pay