The announcement came a day after a 17-year-old footballer tested positive for H1N1 virus, making him the first swine flu patient in the state.
"People should avoid travelling, particularly to swine-flu hit places, unless it is of urgent nature. The fast spreading of the virus is mainly due to mobility of people. As a preventive measure, people should skip avoidable travelling and prevent themselves from coming in contact with affected persons," Health Minister Mukul Sangma told reporters here.
The minister, however, asked people not to panic.
"I am communicating with health ministers of the North East to exert pressure on the Centre to set up a testing centre in one of the health institutions of the region, so that samples of the suspected flu patients could be tested without sending them as far as Kolkata."
He said such a diagnostic centre could help in checking the spread of the virus in the region.
Footballer, Salwit Tongper, had returned from the UK on August 3 and was admitted to Shillong Civil hospital on August 8.
A report from National Institute for Cholera and Enteric Diseases, Kolkata confirmed him to be H1N1 positive, yesterday.