variant. let s take a look at something that dr. rochelle walensky said yesterday. the rates are doubling, the rates of omicron are doubling every two days in some countries. let s look at what it looks like in the united states. if you look at the week ending december 4th, .4% were christmas, the week ending december 11th, that s 2.9%. that s doubling. that s a huge leap. we ll see if that continues. certainly dr. anthony fauci said he anticipates omicron will become the dominant variant in the u.s. erica, jim? and maybe more quickly than we imagined. elizabeth cohen, thank you very much. joining me to discuss is dr. william schaffner, professor in the division of infectious diseases at vanderbilt university medical scepter. g center. good to have you back. we re looking at these events from cornell university and are we seeing a canary in the coal