Bird Flu Cases Confirmed In China

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A cyclist rides past a closed poultry wholesale market on April 8,... News PhotoBestof,Cycling,Healthcare And Medicine,Horizontal,Illness,Market,Market Stall,Nanjing,Photography,Riding,Topics,TopixPhotographer Collection: Visual China Group 2013 Visual China GroupNANJING, CHINA - APRIL 08: (CHINA OUT) A cyclist rides past a closed poultry wholesale market on April 8, 2013 in Nanjing, China. China is increasing efforts to stem a confirmed H7N9 bird flu outbreak which has infected at least 21 people and killed six. Many poultry wholesale markets have been closed in central and eastern China. (Photo by VCG via Getty Images)