of that, but then again, there's a big picture of trying to do it in a way that is scientifically sound but that also gets people back to work. the cdc is doing their very best in trying to get the right balance of getting people back, but doing it on a solid scientific basis. >> got it. okay, let's talk broadly about some of the things that are making americans very confused right now, and i want to tick through a couple of key questions and try to get some clarity. first, do at-home rapid tests work to detect omicron? >> the answer is they do, and i think the confusion, dana, is that rapid antigen tests have never been as sensitive as the pcr test. they're very good when they are given sequentially, so if you do them like maybe two or three times over a few-day period, at the end of the day, they are as good as the pcr, but as a single