A staff member of the local quarantine administration prepares to spray chickens with disinfectant at a poultry market in Nanjing, Jiangsu province, December 12, 2007. China has warned of a "very high" possibility of outbreaks of bird flu over winter and spring as the country hunts for the causal link between a son and a father struck by the virus, state media said on Tuesday. REUTERS/Sean Yong (CHINA)
REUTERS/SEAN YONG