Most human cases of H7N9 infection have been isolated so far, the National Health and Family Planning Commission said.
China has so far reported more than 115 human H7N9 cases this year, including over 25 deaths, with Zhejiang and Guangdong being mostly affected.
The latest cases of human H7N9 infection were reported yesterday in China's southern Guangxi Zhuang Autonomous Region and southeastern Fujian Province.
During the Spring Festival holidays, expert teams dispatched by the commission have been supervising local hospitals in Beijing, Shanghai Zhejiang, Fujian and Guangdong in diagnosing and treating H7N9 patients, it said.
The health authorities will strive to prevent cases of severe infection and reduce casualties, said state-run Xinhua news agency, citing a statement of the Commission.