Seventeen people are being treated at the Kozhikode Medical College Hospital. The disease has been confined to Kozhikode and Malappuram districts.
But the minister said two new cases of patients with suspected NiP and fever were reported in Kozhikode and they were under observation.
Ms Shailaja told the media here that though the virus had been contained, there was a need be alert.
"The entire expenditure of these patients would be borne by the state and there need not be any panic over bats. The government is awaiting the supply of ribavirin, a drug that's commonly used for treating similar cases," she said.
After presiding over the cabinet meeting, Chief Minister Pinarayi Vijayan on Wednesday announced an ex-gratia payment of Rs 5 lakh each to the families of the dead.
"Their two children will be given Rs 5 lakh each and this can be withdrawn when they turn 18," a statement issued by Mr Vijayan's office said.
Transmission of NiV takes place through direct contact with infected bats, pigs or from other NiV-infected persons.
Meanwhile, three teams of health experts deputed by the Centre are working in Kozhikode along with various teams of the state government, officials said.