An epidemic prevention staff in protective suit is engaged in disinfection work in Guaqi Village of Ezhou City, central China's Hubei Province, Feb. 1, 2004. The local government there forced sweeping slaughter and quarantine measures immediately and sent in related samples to the Harbin-based National Bird Flu Reference Laboratory after a suspected case of bird flu was found in the village. No human infection has been found in the region. (Xinhua Photo)

An epidemic prevention expert (C) explains how to protect from bird flu infection to local villagers in Guaqi Village of Ezhou City, central China's Hubei Province, Feb. 1, 2004. (Xinhua Photo)