Reporter: Ray Martin
Producer: David Alrich
Imagine doctors saying they've found a cure for childhood cancer. Not some quackery, but a genuine cure.
That's what researchers are on the verge of right now - perhaps one of the greatest medical breakthroughs of the 21st century.
But it's only the start of this amazing medical story.
This treatment uses one of the most notorious killers of our time - the dreaded HIV.
It is a killer cure that parents of desperately sick children are hailing as a miracle. And with a little more science, it might just beat all cancers for good.