Physician expects new COVID-19 variants every few months: 'Whole world is a petri dish'

An emergency room physician in Toronto is warning that COVID-19 variants will continue to "mutate endlessly" as the Omicron subvariants BA.4 and BA.5 are poised to become the dominant strains of the virus.

"The whole world's a petri dish," Dr. Kashif Pirzada told CTV News Channel on Thursday. "We're going to have these waves every two to three months."

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Pirzada urged people who are gathering to consider using rapid tests before attending gatherings, and to hold any get-togethers outdoors, but also urged Canadian governments to take action ahead of a rise in cases.

"We really need to change strategy."

Watch the full interview by clicking the video at the top of this article.