Chickens are seen at a live poultry market in Longgang District of Shenzhen City, south China's Guangdong Province, Dec. 13, 2013. Samples taken from two live poultry markets in Shenzhen have tested positive for H7N9 bird flu, the Guangdong provincial health authority confirmed on Wednesday. Guangdong health authorities warned the public to be aware of H7N9 transmission risks. The poultry markets where samples tested positive were asked to close for a week. (Xinhua/Mao Siqian) |