The focus is shifting away from linking unlinked cases as Auckland's Covid-19 case numbers continue to rise.
Another 71 new community cases were recorded in Auckland yesterday.
Daily case numbers are expected to double in the next 14 days, which could put strain on the current contact tracing system.
Director-General of Health Dr Ashley Bloomfield told Mike Hosking the main priority now is containment, rather than contact tracing.
"At this stage, we're not putting too much resource into trying to find where the linkage is. The key thing is, of course, get these cases isolated as quickly as possible and find any contacts."