COVID reinfection: Here's what we know - CTV News Toronto

As research suggests that COVID-19 has infected roughly half of the Canadian population, the emergence of an even more contagious version of the virus means some people may be in for another round.

As research suggests that COVID-19 has infected roughly half of the Canadian population, the emergence of an even more contagious version of the virus means some people may be in for another round. … [+5241 chars]

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