The latest sample sent to Kolkata was of a non-tribal, recently coming from Delhi who was treated at a private hospital in Aizawl and shifted to ICU in a government hospital after being suspected of H1N1 infection.
Altogether five samples of swine flu suspects were sent for diagnosis so far, Lalmalsawma said.
Meanwhile, screening of suspected swine flu patients were being conducted at the lone Lengpui Airport near Aizawl and the Mizoram-Assam border Vairengte town.
"We would take necessary steps in accordance with the situation in neighbouring states and countries," he said, adding, the Referral Hospital in Falkawn near Aizawl was prepared for treatment of swine flu patients.