infectious disease expert and chief medical officer to president biden, dr. anthony fauci. dr. fauci, i m so grateful to you for joining us. folks have a lot of questions about the updated cdc guidelines and i want to get into it. the updated guidance says you only have to quarantine after five days. the confusing thing is this applies to the vaccinated and unvaccinated and this gidance is based on research that came out prior to the omicron variant. can you talk us through what led to this change? yes, first of all, you re right. it s anyone who is infected whether you re an unvaccinated person or whether or not you have a breakthrough infection following your vaccination, and what it means is keeping people out of action, out of work, out of society for ten days, if you re infected you have five