seven-day net average change is what it shows. if you're red or orange that means you're going up, and that's most of the country right now to. that point, dr. fauci says you should get boosted. the official government policy is fully vaccinated is two shots. listen to dr. fauci explain this is not a big deal. >> well, it's almost a semantic thing. we know what optimal is. optimal is getting a boost, so instead of worrying about what the definition of fully versus not fully, is i'm telling people if you want to be optimally protected and you're vaccinated, get boosted. >> is it semantics or bad government policy? if optimal is best and best is a booster, three shots, why is the government policy still two? >> well, i think you're going to see that change over time. we now have a much better understanding of why the booster is so important, and as elizabeth cohen said earlier in this piece, it can have a major impact potentially on whether someone has a serious illness with either delta or omicron or