The Trudeau government is pushing back at U.S. President Joe Biden's televised message to vaccinated Americans that they can gather safely for the holidays despite the spread of the Omicron variant.
Growing case numbers are making it difficult for people to access testing in a timely manner, which in turn is delaying the identification of cases for followup, one health unit said.
The long-awaited milestone comes as U.S. cases, hospitalizations and deaths are all rising and health officials warn of a tsunami of new infections from the omicron variant that could overwhelm hospitals.
Starting at 11:59 p.m. on Wednesday, bars, nightclubs, gyms, fitness centres and dance studios will have to close, and all seated events will be reduced to 50% capacity.