Why has Covid's fourth wave been so different across Canada?

Much of the Atlantic bubble is intact, but in New Brunswick, cases are spiking. Ontario has mostly escaped unscathed so far, while Saskatchewan and Alberta grapple with a wave worse than the first three. Is this evidence of the pandemic diverging regionally across Canada, or just a more infectious variant that can better find holes that existed the entire time?

What have we learned from previous waves that we're employing now? What are we still finding out? And, most importantly, will this be Covid's last wave in Canada?

GUEST: Dr. Raywat Deonandan, Global Health Epidemiologist and Associate Professor with the Interdisciplinary School of Health Sciences at the University of Ottawa.

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