Northland measles outbreak 2025

The story so far

Health New Zealand then confirmed four Northland cases, with a historical case linked to travel in Asia considered the likely source, and officials warned of possible undetected spread since early September.^{27 Sep 2025} Contact tracing and further infections brought the Northland total to nine by 2 October, and people who attended exams at Kerikeri High School in early September were told to watch for symptoms.^{30 Sep 2025; 2 Oct 2025}

Latest

Northland's regional total reached 12 after two new infections, and both people were already in quarantine while infectious.^{13 Oct 2025} Pop-up vaccination clinics have been active in the region since the outbreak began.^{13 Oct 2025}

Key moments

1. 26 Sep 2025Measles case confirmed in Bay of Islands, linked to overseas travel.
2. 27 Sep 2025Four Northland cases confirmed; Asia-linked historical case likely the source.
3. 29 Sep 2025Queenstown case confirmed, with no known links to Northland cases.
4. 30 Sep 2025Six Northland cases; new locations include a Kerikeri school play.
5. 2 Oct 2025Northland total reaches nine; Kerikeri High School exam attendees warned.
6. 6 Oct 2025National total reaches 11, with ten linked to Northland outbreak.
7. 9 Oct 2025Pacific leader urges vaccination, citing the 2019 Samoa outbreak.
8. 13 Oct 2025Northland total rises to 12; pop-up vaccination clinics active.

Written from the stories below; each sentence links to its sources.