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Fully vaccinated Americans urged to get boosters as Omicron COVID variant spreads

Some teenagers may soon be eligible for COVID-19 vaccine booster shots. This news comes after Pfizer revealed that three doses of its vaccine are more effective at neutralizing the Omicron variant than two. Dr. Esther Choo, professor of emergency medicine at Oregon Health and Sciences University, joins CBSN to discuss some of the latest coronavirus headlines.
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