Measles contact tracers have found patient zero on a Cook Strait sailing of the Bluebridge Ferry on October 3, NZ Public Health medicine specialist Dr Matthew Reid has confirmed to RNZ.
It brings the number of measles cases from the ferry to five.
She said anyone who was on that ferry and has measles symptoms, or even if they had measles symptoms which have now resolved, should contact Healthline or their health provider.
Bluebridge Ferry had assisted in providing passenger contact details to health officials to allow them to send out text messages and emails to passengers, she said.
But that did not include all passengers on that ferry as some people booked through other agents.
