As many as 100,000 Canadians could die unless strong controls are practiced to slow the spread of COVID-19, Canadian health authorities predicted Thursday.

For the first time, officials presented national figures of infection and deaths under three models; strong control measures like social distancing and weaker ones and no controls at all.

Officials stressed the figures, based on available data, could change since the situation is fluid and statistics shift.

“Data and models can help Canadians see how our collective efforts … can determine the trajectory of Canada’s COVID-19 pandemic,” chief public health officer Dr. Theresa Tam said

Read more: 100K Canadians could die form COVID-19: officials