As of midnight, those who are fully vaccinated and have tested positive for COVID-19, or are showing symptoms after being in close contact with someone who has tested positive, will now have to self-isolate for seven days instead of 10.
Fully vaccinated close contacts of someone with COVID-19 who don't have symptoms will have to self-isolate for five days if they are able to isolate themselves from the case and non-household contacts, and seven days if they cannot.
Those times are down from seven and 10 days, respectively.
Unvaccinated household contacts of someone with the virus will have to self-isolate for 10 days, whether they isolate themselves from the case or not.
"We've looked closely at the evidence around Omicron, and we know it has a shorter incubation period and perhaps infectious period than the variants that have come before it," Chief Medical Officer of Health Dr. Janice Fitzgerald said during a briefing Friday.
Fitzgerald said evidence also shows those who are fully vaccinated shed the virus for less time
. The new isolation timelines also apply to those already in isolation, she said.