One year of COVID-19: What we do and don't know on the anniversary of Ontario's first case:We've learned a lot, but important questions remain unanswered
by from on (#5DAHX)
It's been one year since Ontario reported Canada's first case of COVID-19. The patient, treated at Sunnybrook Hospital, was a 56-year-old Toronto man who had recently returned from a three-month stay in Wuhan, China.