We're also acquiring random samples from members of houses suspected of having influenza symptoms,' the official added.

The survey will be extended to other parts of the state from which swine flu cases have been reported.

In Andhra Pradesh, Health Minister D. Nagender told reporters that an Indian Administrative Service (IAS) officer, who is a collector of a district, had tested positive for swine flu.

He declined to reveal the official's name but some TV channels identified him as Nalgonda district collector S.A.M. Rizvi. He is being shifted to Hyderabad for treatment.

The health minister said it has been decided to set up six more screening centres in Hyderabad besides one screening centre in each district.

Chief Minister K. Rosaiah, who reviewed the situation at the Gandhi Hospital Sunday, said that in view of the high cost of testing - almost Rs.9,000 per individual, the government has decided to include swine flu in the package of Aarogyasri, the health insurance scheme for the poor.

Health Secretary L.V. Subramanyam said that as the majority of the 319 people found infected were poor, the government has decided to include it in the Aarogyasri package. 'This package enables even the BPL (below poverty line) ration-card holders to take swine flu treatment which costs upto Rs.60,000 per person.'

The fresh swine flu cases were reported from Delhi (85), Maharashtra (49), Tamil Nadu (31), Haryana (24) and Karnataka (14).