COVID-19 Response Minister Chris Hipkins is urging New Zealanders to get tested if they're feeling sick.
The appeal comes after a new case of COVID-19 was detected in Northland's community on Sunday, in a 56-year-old woman who left Auckland's Pullman Hotel MIQ facility on January 13.
While there has been no evidence of community transmission in Northland so far, Hipkins is urging New Zealanders to get tested and continue scanning.
"Don't go to work if you are feeling unwell," Hipkins said at a 4pm press conference on Sunday.
"If you're feeling unwell and showing symptoms, please get a test and then isolate until you get the results of that test back.
"Turn on Bluetooth and wash your hands."
Hipkins also pleaded with Kiwis to use the COVID Tracer app at all locations they visit.
The woman who contracted COVID-19 in Northland has been "scrupulous" in scanning QR codes, Hipkins said, laying a "very good foundation" for the contact tracing team.
Hipkins said it is "so premature" to speculate there would be any alert level change.
"If anyone is symptomatic, either in Northland or elsewhere in New Zealand, the advice is to get a test," Dr Bloomfield said.
The woman travelled around Northland, including Helensville, Mangawhai, and Dargaville. A list of all the locations she visited, with potential exposure dates and times will be published, Dr Bloomfield said.
Anyone who has been at the locations in question should stay at home and call Healthline to find the "right time" to get a test.
"Our advice is five days after they may have been potentially exposed," Dr Bloomfield said.