SHANGHAI - Four more people in China have been infected with a strain of bird flu, a local government official said Tuesday, bringing the country's total to seven.
A vender stands near cages at a chicken wholesale market on Tuesday in Shanghai. The city on Tuesday activated an emergency response plan following the recent deaths from a lesser-known strain of bird flu. (AP Photo)
Three women and one man had contracted H7N9 avian influenza, the health bureau in the eastern province of Jiangsu said in a statement.
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