Bhubaneswar, Nov 3 : Three more students tested positive swine flu in a residential girls' school in Orissa's Sundergarh district, officials said Tuesday. Two girls had already been detected to be infected Sunday.

"Four swab samples had been sent to regional medical research center. Three of them were found to be positive," Gopinath Mahalik, director of health, told IANS.

He, however, said that there is no need to panic.

"There is no need to panic. We have taken every precautionary measure. A team of doctors is already stationed at the school and treating the students. We have quarantined the students to prevent the spread of any contamination," he added.

Samples of two students of the Jampali Government Girls High School, sent to the regional medical research centre, turned out to be positive Sunday.

The health department was concerned after it found some of the students returned to their homes after they complained of fever last Saturday.

However, the officials say that the students have been traced and undergoing treatment.

"We have traced ninety percent of the students who had gone to their homes after they complained of fever. We are treating them too," Mahalik added.(IANS)