NWT residents who worked at Imperial Oil's Kearl Lake site in Alberta and who have returned to the territory must immediately self-isolate for 14 days, chief public health officer Kami Kandola said on Friday.
From March 24 and onwards, workers and sub-contractors at that site might have been exposed to Covid-19, Dr. Kandola said in a news release.
"This request is due to reports of potential ongoing Covid-19 transmission and to allow for self-identification of NWT residents who may have worked at the site in any capacity," she said.
There have been at least 36 confirmed cases of Covid-19 traced to Imperial Oil's site at Kearl Lake, according to a report in Fort McMurray Today.
Alberta Health Services declared an outbreak there when three workers tested positive for coronavirus on April 16.
"If you worked at the Kearl Lake site, you are advised that in addition to self-isolating, you monitor yourself and immediately report any signs and symptoms of Covid-19 for the duration of the self-isolation period," Kandola said.
Residents can monitor their symptoms by checking here.
If residents develop fever, a new or worsening cough, shortness of breath, muscle aches, tiredness, sore throat, runny nose, headache, diarrhea, vomiting, loss of sense of smell, or are just generally feeling unwell they should contact a local health care provider to get assessed for testing or visit this site.