Landmark cancer therapy wins Nobel prize
Two scientists who discovered how to fight cancer using the body's immune system have won the 2018 Nobel Prize for physiology or medicine.
The work by James P Allison, from the US, and Tasuku Honjo, from Japan, has led to treatments for advanced, deadly skin cancer.
Immune checkpoint therapy has revolutionised cancer treatment, said the prize-giving Swedish Academy.
Experts say it has proved to be "strikingly effective".