Australians evacuated from China will be flown to Perth for hospital treatment if they fall ill before being taken to Christmas Island.
More than 240 Australians are heading home on a Qantas flight that has left Wuhan, the epicentre of the coronavirus outbreak.
The plane is due to land at the RAAF Base Learmonth near Exmouth in Western Australia's north on Monday afternoon before being taken to Christmas Island on smaller military aircraft.
Passengers underwent health checks before boarding the flight and were not allowed to travel if they were unwell.
West Australian authorities have nonetheless made contingency plans in case any of the passengers are ill when their flight lands.
Health Minister Roger Cook says there will be St John Ambulance and Royal Flying Doctor aircraft on standby at Learmonth to transport passengers if needed.
Any affected travellers would be taken to emergency departments at either Perth Children's Hospital or Sir Charles Gairdner Hospital.
"Our bigger EDs obviously have isolation rooms and negative pressure observation rooms," Mr Cook told reporters on Monday.
"They will be well set up to manage those patients as they come in."
The World Health Organisation has declared the coronavirus outbreak an international emergency. Source: Getty Images
WA is also sending a team of medical assistants to Learmonth to help with the assessment of patients.
The state is yet to record a positive test for coronavirus.
