The girlfriend of China's second confirmed A/H1N1 patient was quarantined on Wednesday, but she has shown no symptoms of the virus, the health department of Tianjin Municipality has announced.

The 17-year-old woman surnamed Zhang traveled from Toronto, Canada, with the flu carrier surnamed Lv on Air Canada flight AC029 on May 8. They separated when they arrived in Beijing and she took a private car sent by her parents to take her home to Tianjin on Sunday.

The man left Beijing by train D41 on Monday evening and arrived in Jinan, the provincial capital of Shandong, three hours later.

China's Ministry of Health on Wednesday confirmed Lv was tested positive for the A/H1N1 influenza.

Zhang Guixiang, deputy director of Tianjin's health department, said Zhang was among the people who had close contact with the flu patient. Both her parents were also quarantined Wednesday. They have shown no flu symptoms.

A health official surnamed Gu told Xinhua that Zhang said she and Lv were schoolmates at a Canadian university. They spent the weekend touring Beijing and had a roast Beijing duck dinner together.

Lv had a fever on May 10, the day Zhang left. He took his temperature himself on May 11. It was 39 degrees Celsius, and he had a sore throat and headache.

His temperature had fallen to 36.4 degree Celsius as of midnight on Tuesday, a spokesman of Shandong Health Department said.

He reported to the Jinan Center for Disease Control and Prevention (CDC) on the train, which immediately sent him to the Jinan Infectious Disease Hospital for isolation and treatment.

The Shandong health authorities have disinfected the hospital. Some of the people in close contact with Lv have been put under medical observation.

THe MOH, the Ministry of Railways and the civil aviation department are tracing passengers on flight AC029, who were seated in rows 32 to 38, and in the seventh carriage of the Beijing-Jinan train.

Beijing has also quarantined 60 people in a hotel where Lv stayed for three days in Beijing, before he left for Jinan.

(Xinhua News Agency May 13, 2009)