This successful treatment can revolutionize medical field. Hemophilia B was spread by Queen Victoria. Though the disease seems to be treatable by gene therapy, much of the advancement has not still been made in treatment procedure.

“I think this is a terrific advance for the field,” said Dr. Ronald G. Crystal, a gene therapist at Weill Cornell Medical College. “After all the hype in the early 1990s, I think the field is really coming back now.”

Gene therapy was relegated to background when a patient died in 1999 at the University of Pennsylvania. In gene therapy, defective genes are replaced by the newer ones with intact version.

The success meted out this time may go longer and can lead to advancement in this therapy. This research was carried out by Dr.Nathwani and his colleagues. They infused virus in the veins of patients. It produced a bit of factor IX.

Researchers feel some further studies and more comprehensive research studies are required to get better results with gene therapy. Also, equal is the need for proper practical implementation.