HANGZHOU - A human case of H7N9 was reported in East China's Zhejiang province on Sunday, the provincial health and family planning commission said in a statement.

The patient is a 34-year-old woman surnamed Cai, who is from the city of Zhuji. She was confirmed to be infected with the bird flu virus on Saturday.

By 1 pm on Sunday, she was still in critical condition at a local hospital, the statement said.

This is the first case to be reported in Zhejiang this year. In November, two cases were reported in the province.

It is the second case to be reported in China this year.