People at 11 locations of interest are being asked to contact Heathline urgently about measles

Among them are BP Richmond in Nelson, Dunedin Hospital's ED, several Queenstown stores, and two bars on Auckland's Karangahape Road.

Health New Zealand says those who've attended the sites at certain times are considered close contacts, and have a higher risk of being infected.

Full details are available on Health NZ's website.

The total number of cases remains at 30, after no new cases were reported yesterday.