As the weather gets warmer, migratory birds bring a serious threat.
Prevention and control of bird outbreaks is of chief importance. If we fail to do that well, then sooner or later there will be transmission from birds to human.
In the face of the complicated epidemic situation, we are fully capable of effectively containing the spread of bird flu in China.
China's experience has shown that vaccination is a very effective way to control bird flu.
We are still facing great challenges of bird flu control.
Winter and spring are peak seasons for bird flu, and 60 per cent of China's domestic birds are raised on backyard farms with inadequate management, making epidemic prevention difficult.