A Syrian boy was born with a genetic
condition that made his skin extremely
fragile. For his whole life, most of his body
looked like an open wound-and he wasn't
expected to live for long. Doctors in
Germany took a sample of his skin and
infected it with a customized virus to repair
the DNA, then used those modified skin cells
to grow skin grafts totaling 9 square feet.
The boy now leads a normal life.