Spike in COVID-19 cases expected from holiday travel in U.S.

Some experts predict the next month could be the worst part of the pandemic so far in the U.S., after millions of people traveled for the holidays. The new, more transmissible COVID-19 variant — first detected in the U.K. — is now in the states, and vaccinations are happening much more slowly than predicted. Dr. Stanley Perlman joins CBSN's Lana Zak to discuss the latest on the pandemic.


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