transmissible, why should they be keeping you out of work, especially if you're an essential worker. you're not that transmissible after day five, so you can go out of isolation as long as you meet the criteria. jim? >> that graphic you showed is very revealing. it shows a steep drop in transmissibility days after that first positive test. elizabeth cohen, thanks so much for clarifying. let's dig deeper now, cnn medical analyst dr. leana wen joining us now. dr. wen, good to have you here. now, looking at that graph, perhaps we can put it up again, that shows how infectiousness drops quickly after the first day that people test positive. when you look at that, does that make this new guidance make sense to you to some degree, or do you think they could have done it better? >> well, i do think that