'It's hard to imagine' new Covid variant could be more transmissible than delta, U.S. doctor
Published Date: 11/26/2021
Source: CNBC International TV
Dr. William Schaffner of the Vanderbilt University School of Medicine talks about what needs to be done to determine whether the B.1.1.529 variant detected in South Africa may be a "variant of interest" or a "variant of concern."