China confirmed five more H7N9 new infection cases, including one in Shanghai and four in Zhejiang Province.

Authorities said totally 82 H7N9 cases occured in China, including 17 of them end up with the patients' death.

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Of the total, five H7N9 patients have been discharged from hospitals after receiving treatment, and the other 60 patients are being treated in designated hospitals, according to the commission.

A study shows that China's confirmed H7N9 cases are isolated and there has been no sign of human-to-human transmission.

According to a joint inspection group composed of the commission and the World Health Organization, humans contracted the virus from infected fowl or the contaminated environment. The H7N9 cases may keep increasing until the pollution sources are under effective control.

The first person infected with H7N9 flu in Beijing is recovering and will be discharged from hospital soon, Beijing health bureau said on Monday.