The search for the dead bodies continues, and dealing with the corpses has been another challenging job. About 7,000 people died in Yingxiu, and the victims are buried on the hills, far away from the water sources.

The clearing work takes place round the clock, and so does the work of the anti-epidemic doctors. The crucial part of their job has just begun.

Li Feng said, "Since the disaster has caused huge damage to the environment, it's really hard to predict when we might finish the job. It will take quite a long time."

Disinfectant spray vehicles are in full swing.

Li Feng and his team members are racing against time. Though the result of their efforts has been remarkable, with no breakout of epidemics or lingering bad smells here in Yingxiu, they know that great challenges still lie ahead.

Doctors say, in natural disasters such as the devastating Wenchuan earthquake, there is a severe threat of epidemics, such as cholera, shigella and malaria. So, there is no time to waste in ramping up anti-epedimic work.

(CCTV May 27, 2008)