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Workers download chickens from a truck in a poultry wholesale market in Nanjing, capital of east China's Jiangsu Province, March 22, 2006. Investigation results show that prevention and control of the highly pathogenic bird flu virus is carried out in an orderly way throughout the country. In an effort to help scientists trying to develop a vaccine, China has agreed to share up to 20 virus samples from poultry killed by bird flu. [Newsphoto]