One more human case of H7N9 bird flu has been reported in south China's Guangdong Province, local health authorities said on Friday. A 57-year-old man in Shenzhen City was confirmed on Thursday to have been infected with the virus. He is now in a cricical condition, said the Guangdong Provincial Health and Family Planning Commission. China has reported more than 120 human H7N9 cases this year, including at least 36 deaths.