Latest COVID booster guidance as new Arcturus subvariant spreads

The Centers for Disease Control and Prevention is expected to sign off on guidance for another COVID-19 vaccine booster for higher-risk groups. Meanwhile, a new subvariant of the virus first detected in India is spreading across the U.S. Dr. Matifadza Hlatshwayo Davis, director of health for the city of St. Louis, joins CBS News to discuss.