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Researchers race to learn about Omicron coronavirus variant

CBS News foreign correspondent Deborah Patta reports on the researchers racing to learn more about the Omicron variant first reported by South Africa, which has now spread to 19 countries and territories. Dr. Dyan Hes, the founder of Gramercy Pediatrics in New York City, joins CBSN to discuss the latest concerns over the variant and vaccine efforts.
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