Diane Thom, the minister of Health and Social Services, has once again extended the public health emergency.
The territorial government says the risk remains high as there have been several outbreaks in southern Canada.
It adds that about 700 new self-isolation plans are filed every week.
The territory also confirmed a case of the virus at the Diavik Diamond Mine last Friday.
The person remains in self-isolation at the site.
Maintaining the public health emergency allows current travel restrictions, isolation requirements and enforcement to remain in place.
This latest extension will last until August 18.