The first vaccine which protects children against hand, foot and mouth disease has been reported by scientists in China.
The infection causes a rash and painful blisters, but in some cases results in brain infections which can be fatal.
A trial involving 10,000 children, published in the Lancet, showed the vaccine was 90% effective against one virus which causes the disease.
It does not protect against other viruses that result in the disease. Viruses can cause large outbreaks of hand, foot and mouth disease.