China had stepped up checks on people entering the country by sending another six supervision teams to major provinces to prevent influenza A/H1N1 from spreading to the country, the top quality supervisor said Monday.

These teams went to provinces of Shandong, Hebei, Sichuan, Jiangsu, Zhejiang, Hunan, Hubei and Shaanxi and would work together with local authorities, according to the General Administration of Quality Supervision, Inspection and Quarantine (GAQSIQ).

GAQSIQ required all people entering China by air, land and sea to fill in personal health statement cards to strength control efforts.

The 6 teams were in addition to the previous 5 teams going to Beijing, Shanghai and Guangzhou on April 25.

(Xinhua News Agency May 5, 2009)