Shandong province confirmed its first case of H7N9 infection on Tuesday after a 36-year-old man with a cough and fever was hospitalized in Zaozhuang on Sunday.

The man is in critical condition. Nine people who were in close contact with him have not shown related symptoms.

There were three other new H7N9 cases confirmed on Tuesday, two in Zhejiang province and the other in Anhui province.