Another person has tested positive for the A/H1N1 influenza in Beijing, the Beijing municipal health bureau said on Friday.

This is the fourth confirmed case in Beijing and the seventh on China's mainland.

The male patient, surnamed Li, is a 65-year-old Chinese American who flew to Beijing from New York on Thursday. His flight number was CA 982.

Li's body temperature was 37.5 degrees Celsius when he entered the airport in Beijing. He was immediately sent to Ditan Hospital.

His body temperature was normal and he was in stable condition, according to a press release by the Beijing health bureau.

Li lives in Wuhan of central China's Hubei Province.

Doctors have found all 14 people, all Chinese, sitting within three rows of Li on the plane, said Deng Ying, director of the Beijing municipal center of disease control and prevention.

Ten in Beijing were quarantined. The other four, from Shandong, Tianjin, Hunan and Shaanxi, were quarantined in those provinces, said the director.

Beijing reported its third confirmed case at about 7 p.m. Friday. The patient was a 69-year-old man surnamed Zhang who had just returned from Canada, the municipal health authority said.

Zhang is a Chinese national who had lived in Canada for more than two years. He arrived in Beijing together with his wife at 4:00 PM on May 16 on flight AC031 from Toronto, the Beijing Municipal Health Department said in a press release.

Doctors have quarantined his wife, son, daughter-in-law and granddaughter. Zhang is in stable condition, said Deng Ying.

China had seven A/H1N1 influenza cases as of Friday, four in Beijing, one in Sichuan, one in Shandong and one in Guangdong.

All of the patients contracted the virus overseas and developed the flu shortly after arriving in the Chinese mainland.

Four patients have been discharged, including Bao from Sichuan, Lu from Shandong, Yang from Guangdong, and Liu Xinwei from Beijing.

Guangzhou, capital of the southern Guangdong Province, also lifted the quarantine on 90 people who had been in close contact with Yang.

(Xinhua News Agency May 23, 2009)