Chinese officials have found traces 2 of a new bird flu virus in more areas in Shanghai and in the nearby city of Hangzhou as authorities slaughtered 3 birds to stop the spread of the virus that has killed six people. State-run Xinhua news agency said authorities planned to cull 4 birds at two live poultry markets in Shanghai Chinese officials have found traces 2 of a new bird flu virus in more areas in Shanghai and in the nearby city of Hangzhou as authorities slaughtered 3 birds to stop the spread of the virus that has killed six people. State-run Xinhua news agency said authorities planned to cull 4 birds at two live poultry markets in Shanghai