you know, you mentioned the airbnb. they are taking this seriously. and providing guidance to their hosts about how to go about this. and so, you know, i think you might see a relaxation of things like surface cleaning and not going as crazy with that. but then, you know, making sure you open windows and so on between guests to make sure you appropriately ventilate the space. >> and dr. wen, to build on what dr. cyrus was talking about, when you are traveling with your family in a lot of instances the children are unvaccinated. so from a public health standpoint, what is safer for an unvaccinated child? a pool or beach? >> well, i am thinking about this a lot myself as i have two young kids, neither of whom are vaccinated because of age. i have a 1-year-old and 3 1/2-year-old. in terms of the pool or the beach, actually both are very safe if they are outdoors. we know that covid-19 is not transmitted through water and actually chlorine in the pool