a booster shot? >> absolutely, dana. let's make it clear. when there's lack of clarity, people get confused. they're not sure what to do. if you are 18 or older, and you've been vaccinated, fully vaccinated with the moderna or the pfizer mrna, six months or more ago, get a booster, if it's j&j, and it's two months ago, or more, get a booster. i don't think we should get hung up on should/may. just go out and get boosted. we know they're safe and we know they're highly effective in bringing very, have he high up the optimization of your protection. so just go ahead and get boosted. now is the time to do it, as we're getting into the holiday season, you want to be fully protected in the sense of getting optimal. the vaccines themselves clearly are still highly effective, but you want to make sure the durability of that protection is longer and that's the reason why you get boosted, because we know no vaccine lasts forever.