tested a couple days before and the day of gets a little more reliability but nothing is immune to potential spread. those who are vaccinated and boosted have a low risk of severe infection and that's not changed, what we're observing thus far with omicron. >> joe, let's talk about, you know, these things are held in buildings, right? we're seeing radio city rockettes cancel this season. should people avoid going to large holiday events? >> well, you know, i think it comes down to the fundamentals and basics here, don. we know how to keep people safe in buildings. we know what to do. that hasn't changed. omicron doesn't change that. the recommendations we're making on ventilation have not changed. it matters about the context and what protections yo u u have in place. everyone in the space is vaccinated and boosted. that's good protection. if everybody is rapid tested