Omicron could threaten COVID-19 immunity — but we're not going back to 'square one'

Omicron could threaten COVID-19 immunity — but we're not going back to 'square one'

CBC.ca

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The omicron variant, now reported in multiple Canadian provinces and a growing number of countries worldwide, could threaten hard-won immunity to the virus behind COVID-19. But there's hope the highly mutated variant won't bring the world back to "square one" in this pandemic.

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