https://www.thestar.com/news/canada/2023/01/04/heres-what-we-know-about-covid-subvariant-xbb-15-and-its-presence-in-canada.html
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1/5/23 at 10:53pm
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Toronto Star
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The Public Health Agency of Canada says it’s aware of 21 cases of the highly transmissible subvariant of Omicron.
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