with all due respect to albert, the key word there is "may." you know, you may need. i don't think he's saying you will need. i think he's speculating. at this point in time, we have absolutely no evidence of that fourth dose being needed. we need to see where this pandemic is going. a few months ago we were saying boosters were not necessary. now we're saying based on omicron, boosters are necessary. we'll have to see what's going to happen. when he talked about a fourth dose, he said 12 months from now. i can't predict what's going to happen in a month, let alone 12 months. >> especially with this pandemic, which has been the case all along. dr. fauci was on with me yesterday, and we talked about the booster dose and the news from pfizer about holding up against the variant. i asked him if guidance and the definition of fully vaccinated should change in light of this. let me play what he said. >> it's a technical, almost semantic definition, and it is the definition for requirements, if someone says are you fully vaccinated to be able to attend