GUANGZHOU - Authorities in south China's Guangdong Province confirmed a new H7N9 bird flu case on Sunday.

A 39-year-old man, surnamed He, has been hospitalized and is in serious condition, the provincial health authorities said in a statement.

The statement said the resident in Dongguan City tested positive for the virus on Saturday in a local hospital, and the result was confirmed on Sunday by the provincial disease control center.

No abnormity has been reported from the 53 people who had close contact with the patient, it said.

The Chinese mainland has reported 141 human infections of H7N9 so far.

Earlier this month, Hong Kong also confirmed its first two H7N9 cases, including an Indonesian national and a mainland resident.