"People from ethnic minorities need to come forward and to help children such as Zain in the hope that they may be a tissue match and actually cure his condition and save his life, " he said.

BBC: NEWS | Health | Boy wants minority marrow donors

Until now there has been no cure for musicians afflicted by the condition.

BBC: Musician's cramp cure

Parkinson's is a devastating disease for those living with the condition and currently there is no cure.

BBC: Voice algorithms spot Parkinson's disease

The study was published as the University of Edinburgh announced it is conducting research into the causes of the condition in a bid to find a cure.

BBC: The condition can be fatal to mother and child

Researchers are getting closer to finding a cure for juvenile diabetes but it is still a serious condition which in adults shortens the life expectancy by an average of 15 years.

BBC: Teddy helps children face the needle