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Coronavirus: Why isn’t Canada using blood tests for COVID-19?

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Amid widespread criticism of Canada’s COVID-19 testing strategy, experts say health agencies should look towards a widely used method to determine who has been infected and who hasn’t: blood tests.

Serological tests, or blood tests, can identify whether a person has been exposed to a particular pathogen, like the new coronavirus, by looking at their immune response, Dawn Bowdish, Canada Research Chair in aging and immunity at McMaster University, said.

And while the tests can’t detect early infections, they could identify asymptomatic cases or people who had mild infections but were never diagnosed — filling in the gaps to help create a better understanding of Canada’s epidemic, Bowdish said. “They are absolutely the gold standard for

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Southern Ontario highway partially closed due to convoy demonstrations: police
convoy demonstrations against COVID-19 measures.Police said the westbound lanes of the highway at Nauvoo Road have been shut down due to “high traffic volumes” from “freedom convoy” demonstrators.Drivers in the area are being asked to follow emergency detour route signage. Windsor-Detroit Ambassador Bridge access resumes after trucker protest blocked traffic “The OPP respects the right of everyone to freedom of expression and peaceful assembly,” police said.“The OPP asks everyone to be patient and respectful of each other despite potential inconvenience.”The closure is approximately 45 km away from the Blue Water Bridge crossing between Canada and the United States in Sarnia, Ont.It’s not clear if that’s where convoy demonstrators are intending to go.Part of Highway 402 was blocked on Sunday as well due to convoy demonstrations. Police have redirected commercial traffic to the Bluewater Bridge in Sarnia, Ont., and urged motorists to avoid the area around the Ambassador Bridge in Windsor, Ont.There, a protest against COVID-19 measures is blocking Canada-bound vehicles from crossing the Ambassador Bridge between Windsor, Ont., and Detroit for a third day.More to come.— With files from The Canadian Press#LambtonOPP have implemented a closure of westbound Highway 402 at Nauvoo Road to ensure public safety.
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