A disease control staff examines a goose on a farm in Fuqing, southeast China's Fujian Province, April 26, 2013. Health authorities in Fujian Province on Friday confirmed the province's first human case of H7N9 avian influenza. (Xinhua/Zhang Guojun)

A vendor stands by her chicken coop in Fuqing, southeast China's Fujian Province, April 26, 2013. Health authorities in Fujian Province on Friday confirmed the province's first human case of H7N9 avian influenza. (Xinhua/Zhang Guojun)

A disease control staff examines a chicken in a chicken farm in Fuqing, southeast China's Fujian Province, April 26, 2013. Health authorities in Fujian Province on Friday confirmed the province's first human case of H7N9 avian influenza.(Xinhua/Zhang Guojun)

Disease control staffs talk with a chicken breeder in Fuqing, southeast China's Fujian Province, April 26, 2013. Health authorities in Fujian Province on Friday confirmed the province's first human case of H7N9 avian influenza. (Xinhua/Zhang Guojun)