to come. >> reporter: and that's the important thing here is that there still needs to be caution. this is very much sort of a leading indicator of what's going on. officials and experts who are doing this kind of work say this is very important and could become a part of the public health toolbox going forward. >> i was going to say, more information, all good. thank you so much, scott. let's bring in dr. ebony hilton, anesthesiologist and msnbc contributor. always good to see you. there's this new study you're familiar with from the cdc. it shows that a booster shot offers the best protection from omicron hospitalizations. so does that suggest in your mind that we need to change the definition of being fully vaccinated to include a third shot? >> most certainly. you know, it's one of those conversations that we're having with persons in the cdc back in december that we need to change the definition of what fully vaccinated means. we know in israel right now