In November, South Africa alerted the world to Omicron, a new strain of COVID-19. Then, as cases began to pop up worldwide, the World Health Organization labeled it a “variant of concern.” What do we know about Omicron, and just how worried should we be?

Guest: Dr. Katelyn Jetelina, assistant professor with the School of Public Health at UTHealth and author of Your Local Epidemiologist on Substack.

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