On 9 May 2015, the National Health and Family Planning Commission (NHFPC) of China notified WHO of 6 additional laboratory-confirmed cases of human infection with avian influenza A (H7N9) virus, including 2 deaths.

Onset dates ranged from 26 March to 12 April 2015. Cases ranged in age from 3 to 67 years with a mean age of 36 years. Of these 6 cases, 4 (67%) were male. Four cases (67%) reported exposure to poultry related environment and 2 cases (33%) had unknown exposure. No clusters were reported. Cases were reported from five provinces and municipalities: Anhui (1), Fujian (1), Jiangsu (1), Shanghai (1), and Zhejiang (2).