'We are focusing on passengers coming in from high-risk areas presently,' Srivastava said.

He said the health department's swine flu screening unit at Dabolim airport has been instructed to screen all passengers coming in by Maharashtra flights.

'We are in the process of working out a mechanism to cover passengers coming in by railway to Goa,' Srivastava said.

Goa has reported 11 swine flu cases ever since the pandemic broke out a few months ago.