Shanghai (AFP) April 7, 2013China confirmed three more cases of bird flu on Sunday, as authorities sought to curb a deadly outbreak by banning live poultry sales and disinfecting schools. The new cases of the H7N9 strain of avian influenza brought the number recorded in China's developed eastern region to 21 since it was announced a week ago that the virus had been found in humans for the first time. Six people hav Reported by Terra Daily 2 hours ago.