A health official, requesting anonymity said that 'very stringent measures' are likely to be announced to deal with the swine flu situation.

With three more cases reported Tuesday, the official figure of H1N1 infections in Maharashtra has gone up to 150, including 104 in Pune. The other places with positive cases are Mumbai, the hill resort of Panchgani in Satara district, Thane and Nashik.

Pune has already notified as pandemic for swine flu.

The girl Riya Shaikh had consulted a general practitioner when she first reported flu-like symptoms - sore throat, runny nose, headache - on July 21. When her condition improved, she joined school on July 23.

'She again developed fever on July 25, for which she consulted another private practitioner. Her fever continued and she was admitted to a private nursing home in Pune July 27,' according to a health ministry statement.

Her condition worsened and she was shifted to the ICU and put on the ventilator on July 29. 'The patient's lung aspirate was sent to the NIV (National Institute of Virology) on July 31 and was tested positive for swine flu.'

She was put on Oseltamivir or Tamiflu on July 30. Her condition deteriorated and she died Monday evening, a health ministry statement said.