Chinese soldiers disinfect the mudslide-hit town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Wednesday, Aug. 11, 2010. Heavy rains Wednesday lashed a remote section of northwestern China where weekend flooding killed at least 702 people, as hopes of finding more survivors faded and crews worked to stave off outbreaks of disease.  (AP Photo)

Chinese soldiers disinfect the mudslide-hit town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Wednesday, Aug. 11, 2010. Heavy rains Wednesday lashed a remote section of northwestern China where weekend flooding killed at least 702 people, as hopes of finding more survivors faded and crews worked to stave off outbreaks of disease. (AP Photo)