A new measles alert has been issued after an infected passenger flew on a Singapore Airlines flight from Singapore to Auckland.
The Auckland Regional Public Health Service said the passenger was on Singapore Airlines flight SQ281 that arrived at 11.45pm on Sunday.
"The passenger with measles would have been infectious at the time of their travel on this flight," medical officer of health Dr Richard Hoskins said.
Other passengers may soon experience symptoms of the illness if they have been infected, the health service warned.
Thirteen other cases of the illness have been confirmed in the North Island following an outbreak linked to an individual who attended a Sydney dance festival last year.
Anyone who feels unwell should phone their family doctor or call Healthline, on 0800 611 116, for advice.
Calling the doctor or hospital before going in was important due to the highly infectious nature of the virus.
People with the disease could infect others in the waiting room, Dr Hoskins said.
There was no treatment for measles, with vaccination the best protection against the disease.
"My plea would be for parents and families to check that their children's immunisations are up to date.
"Measles is now rare in New Zealand, thanks to immunisation," he said.
