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What we know and don't know about Omicron variant

The World Health Organization says it could still take some time to get a full picture of the threat posed by Omicron, a new variant of the coronavirus as scientists worldwide scramble to assess its multiple mutations. Here's a look at we we know about the variant and why scientists are worried.

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Feds reinstating foreign air travel testing, reviewing booster strategy in light of Omicron

Canada is reviewing its vaccine booster strategy, adding new countries to the list of nations subjected to federal travel restrictions, and is imposing new testing requirements on all air travellers coming from outside of Canada with the exception of the U.S., due to concerns over the Omicron variant. Federal ministers and public health officials announced these three new steps with the aim of preventing further importation and spread of the variant of concern.

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