The health department of Vietnam's HoChi Minh City said on Sunday a 10-year-old boy has tested positive for flu A/H1N1, Vietnam News Agency reported.

The patient returned to Vietnam Saturday evening on a flight from the United States, by way of Hong Kong. He was found to have higher temperature at the International Airport Tan Son Nhat and was then admitted to the No.1 Children's Hospital in Ho Chi Minh City.

The boy's family, including his parents and two siblings, are being monitored and quarantined, according to the report.

The city's health department said the country's first three cases of such a virus infection have been discharged from hospital.

(Xinhua News Agency June 7, 2009)