Dr. David Agus on the COVID-19 vaccine as cases surge nationwide

As Americans start to get vaccinated against COVID-19, the death toll in the United States due to the virus has surpassed 300,000. CBS News medical contributor Dr. David Agus joins CBS News correspondent Anna Werner to explain what you need to know about the vaccine's safety, efficacy, and availability, See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.