Public Health Warns of Measles Risk After Ferry Exposure

Public health officials have issued a warning about potential measles exposure linked to a ferry sailing in New Zealand. An infectious case was present on the Bluebridge Ferry traveling from Picton to Wellington on October 3, 2023, prompting concerns over rising infection numbers across the country. As of now, four additional cases have been associated with this sailing, bringing the total active cases to six nationwide.

The health risks extend throughout New Zealand, as stated by public health medicine specialist Sharon Sime. She emphasized the uncertainty surrounding the initial case, particularly since the ferry’s sailing occurred at a time when many people were traveling. “We are now very confident that there was an infectious measles case on that ferry, and because that sailing was on the last Friday of the school holidays, it’s likely that people who were on the ferry have now spread across New Zealand,” Sime remarked.

Confirmed cases are now reported in various regions: one in Northland, two in Auckland, two in Manawatū, and one in Nelson. These cases add to previously reported infections from the prior week in Northland and one in the Queenstown-Lakes District.

As investigations continue, health authorities are asking anyone who was on the ferry and is experiencing measles symptoms, or had symptoms that have since resolved, to reach out to Healthline or their healthcare provider. “We want to draw people’s attention to the high-risk exposure which is the Bluebridge ferry,” Sime added.

The ferry operator has been proactive in assisting health officials by providing passenger contact details, enabling them to send notifications via text messages and emails. However, it is important to note that not all passengers were reached, as some booked their travel through external agents.

The risk of further outbreaks is significant, as Sime explained. The incubation period for measles is approximately 21 days, meaning that individuals who were on board could still be in the process of developing the disease. “The reason we want them to contact us, even if their symptoms have passed, is we want to ensure we’re getting on top of any secondary cases,” she stated.

In light of the escalating situation, public health teams are prepared to increase their response efforts. Sime reiterated the importance of vaccination, noting, “Measles is almost a completely preventable disease. If you have two MMR vaccines at least four weeks apart, 99% of people will be fully protected from measles.”

Officials urge anyone showing signs of measles to remain at home to prevent further spread of the virus. The health department is committed to monitoring the situation closely and will provide updates as they become available.