Fauci says new COVID-19 variants "are of concern"
There is growing concern among health officials about the possibility of another COVID-19 winter surge. Dr. Anthony Fauci, chief medical advisor to President Biden, said that although the variants are of concern, the updated bivalent COVID-19 vaccines are effective. Dr. Celine Gounder, editor-at-large for public health for Kaiser Health News, joins CBS News to discuss.