Britons returning from coronavirus-hit Wuhan in China will be put in quarantine for 14 days.
Officials are looking at taking passengers to a military base once they arrive home, the Department of Health said.
A flight is due to leave Wuhan in China on Thursday.
Passengers may be asked to sign a contract before they board the plane saying they agree to being placed in quarantine.
Anyone who does not wish to sign could be asked to stay.
Around 200 British nationals are thought to be in the Chinese city.