Auckland health officials are trying to track down passengers on a plane which was carrying someone with measles.
Photo: 123RF
They say the infected person flew in from Manila on Philippine Airlines flight PR218 on 30 November at 2.05pm and those sitting around them may have been infected.
Medical officer of health David Sinclair said they were contacting other passengers on the plane who were sitting between rows 44 and 66.
"Symptoms may begin to appear in other passengers in the next few days but if anyone seated in those rows knows they don't have immunity to measles, they could be vaccinated and that could prevent the symptoms developing," Dr Sinclair said.
He said any passengers on that flight who start to feel unwell should phone their doctor or call Healthline on 0800 611-116 for advice.
Anyone who develops symptoms should also stay away from their workplace and public places such as schools, child care, shopping centres or public transport.
"If you feel unwell, please don't just turn up. It is important to call first, because measles is highly infectious and you could infect others in the waiting room," Dr Sinclair said.
Some may have to be placed in quarantine if they have not been immunised.
Measles usually begins with a high fever, runny nose, cough and sore red eyes, followed by a rash starting behind the ears and spreading to the body a few days later.