Bird Flu Cases Confirmed In China

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A health worker injects virus fighting drugs into a chicken at a... News PhotoFarm,Healthcare And Medicine,Hefei,Horizontal,Illness,Occupation,Photography,VirusPhotographer Collection: Visual China Group 2013 Visual China GroupHEFEI, CHINA - APRIL 09: (CHINA OUT) A health worker injects virus fighting drugs into a chicken at a poultry farm on April 9, 2013 in Hefei, China. Four new H7N9 avian influenza infections were confirmed in east China on Tueaday. So far, China has reported 28 H7N9 bird flu cases, including nine deaths. (Photo by VCG/VCG via Getty Images)