Federal modelling warns of fourth COVID wave driven by Delta if reopening is too fast

Dr. Theresa Tam says the new modelling underscores the need for caution in lifting public health measures as early signs of epidemic growth emerge in some areas Federal officials are warning that Canada could be on the brink of a fourth wave of COVID-19 driven by the highly contagious Delta variant if the country opens too fast before enough people have been vaccinated.-- More...