It's hard to know how many Canadians have actually been infected with the coronavirus. Health experts disagree about how much that matters
OTTAWA — Across Canada, provincial health authorities have limited access to coronavirus tests to conserve resources, even as the World Health Organization calls on nations to expand testing to slow the spread of the disease.
As of Wednesday evening, Canada had recorded nearly 730 confirmed and presumptive cases of Covid-19 and nine deaths, including a first death reported in Quebec earlier that day. Others counter that people are less likely to self-isolate if they don’t know whether they have Covid-19, and argue it’s much harder to control the virus when you don’t know exactly where it is.
Fisman said the real number of cases in Canada could be much larger than the number on the books. “We have the sense that our positives are increasing exponentially,” he said. “The question is what fraction of the true total cases does that represent.” Even if the confirmed cases are a significant underestimate, though, they still give a sense of the virus’ trajectory, said Dr. Brian Conway, medical director of the Vancouver Infectious Diseases Centre. “I think that as long as we keep doing the same thing … the numbers from one day to the next are telling us something about how the epidemic is growing,” he said.
On Wednesday, Health Minister Patty Hajdu announced Canada has approved two new diagnostic tests to allow provincial labs to expand testing.
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