Yangon  - Myanmar reported its first case of H1N1 in a 13-year-old girl who recently visited Singapore, state media said Sunday.

The National Health Laboratory on Saturday confirmed that the girl, who has been kept in isolation at Yangon General Hospital for a week, was infected with New Influenza A (H1N1), the New Light of Myanmar reported.

The girl returned from Singapore on June 21, showing no signs of fever or flu.

The newspaper claimed that a teacher providing the girl with private lessons noticed she had developed a cough, and sent her to hospital Friday.

"The Ministry of Health is keeping all persons who have come into contact with her: her family members, her classmates, private class teacher and her family members, and does not let them go out and is giving health care to them in order to prevent possible spread and take the outbreak of the disease under control," the newspaper said.

It has also kept 91 passengers on the same flight from Singapore under surveillance. (dpa)