None of the additional community tests had identified new cases.
Seven community-based testing centres and five mobile testing units are now active across Northland, the latter completing 56 tests out of 166 Northland-wide tests on Thursday.
Dr McElnay said the ministry was also currently working together with DHBs to develop a targeted testing strategy that could see increased testing in aged care facilities.
The ministry had also agreed to extend locum support to keep vulnerable rural general practices operating as they come under mounting pressure as a result of Covid-19. New Zealand Rural General Practice Network chief executive Dalton Kelly said with many surgeries cancelled, and urban clinics running significantly reduced services, there were urban healthcare professionals with insufficient work.
At the same time, the chronic shortage of healthcare professionals in rural communities remained, and had been exacerbated by Covid-19.
"Many of New Zealand's rural practices rely on a very small number of healthcare professionals, and that number is dropping every year. Rural practices are increasingly reliant on short-term, contract and international health workers," he said.
"Helping rural practices access the skills and expertise of other healthcare professionals can help ensure our rural communities get through this pandemic in good shape."