They, however, pointed out that the girl recovered after initial treatment and was sent home after a couple of days. She and her parents are keeping well and the girl is now totally asymptomatic.

B.N. Chouhan from the state's health department said the child, though well, was still under observation. 'A team of doctors visited the girl's house Tuesday night to carry out more investigations and conduct another check-up on her and her parents to ensure they were actually healthy and had no swine flu symptoms,' he added.

Doctors said the girl possibly contracted swine flu through some relatives from Pune who had visited her parents' house in Bhopal during the festival of Raksha Bandhan.

Till now 79 samples have been sent from Madhya Pradesh and three of them have tested positive for swine flu.

It is suspected that 17-year-old Upendra Yadav, who died in Gwalior on Sunday, succumbed to swine flu, but his test results are still awaited.