It’s an operation during which surgeons replace a sick organ by a healthy organ called a graft.

Every year in the world, 90,000 grafts and organ donations save or improve patients’ lives.

Organ donation is anonymous, free and there is no age limit.

But how does an organ transplant work?

If someone has an accident and cannot be saved when they go to hospital, there’s a race against time.

Doctors keep the heart beating; breathing and temperature are maintained artificially to preserve the organs.