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A breeder covers his face as he sits behind his chickens, which according to the breeder are not infected with the H7N9 virus, in Yuxin township, Zhejiang province, April 11, 2013. According to chicken breeders, their businesses are strongly affected as all six local poultry markets in Yuxin are closed for preventing the transmission of the H7N9 virus. Nine people have died out of 33 confirmed cases of the virus, all in eastern China, according to data from the National Health and Family Planning Commission. State media quoted authorities as saying a vaccine should be ready within months.  REUTERS/William Hong (CHINA - Tags: BUSINESS HEALTH ANIMALS ENVIRONMENT)   FOR BEST QUALITY IMAGE: ALSO SEE GF2E99K0JQS01. - RTXYH66 William Hong/Reuters