Larger COVID-19 surge expected following holiday travel

The new, more contagious strain of COVID-19 first discovered in the U.K. has reached over a dozen countries, and experts say it is likely already in the U.S. Meanwhile, Christmas and New Year's travel is expected to make an already bad situation worse, and vaccine distribution in the nation is behind schedule. Dr. Leo Nissola joins CBSN to talk more about the pandemic.