TAIYUAN, May 24 (Xinhua) -- North China's Shanxi Province Wednesday reported its second human infection of the H7N9 bird flu virus.

Duan, 57, a farmer from Xinzhou, showed symptoms including a fever and cough in early May. He has been receiving treatment at the No. 4 People's Hospital in the provincial capital Taiyuan since the infection was confirmed Tuesday, according to the Shanxi health and family planning commission.

The province reported its first H7N9 case in mid-May.

H7N9 is a bird flu strain first reported to have infected humans in China in March 2013.

Experts recommend avoiding contact with birds, and only buying certified poultry.