these at-home rapid tests for their kids, have you heard them talk about how expensive it is given the cost can really add up if you are buying a lot of these tests? yeah, certainly that is a barrier. there is two things right now. right now there is a shortage of them, they are harder to find even if you do want to pay the money to get them. but yes, they are expensive. i think that there is some push to get these tests free at local libraries or health departments. but i think that the supply right now is limited. so that is a challenge. you know, the other thing too is that, you know, you may not have to just do it once. you may have to do it multiple times. and i think a lot of people are doing that for gatherings, you know, for their holiday gatherings, testing everybody, but we need a steady supply of this embeca them because you may have to use them again and again. so i think that that is a significant challenge.