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    • B.1.1.7

    People wear face masks as they shop at a market in Montreal, Sunday, January 17, 2021. THE CANADIAN PRESS/Graham Hughes

    How worried should Canadians be about the B.1.1.7. coronavirus variant?

    The variant, which tore through the U.K., is 30-50 per cent more transmissible. An expert on what happens if B.1.1.7. takes hold in Canada.