the basis of the seat in your pants and it sounds like a good idea. you have to get the data and then you could make the change. >> i guess i understand we didn't have the data before. haven't we had it since? don't we have the data now in. >> no, we don't. we would need to do studies in the population affected. you suggest children. and you have to look at varying dosing intervals to see if they're better than what we're doing right now. it would have to be rigorous and that would take some time and effort. >> let me move to the issue of i guess marketing the vaccine, dr. cantor, i don't know what other way to put it. it seems if i told you i had a vaccine that would allow us to get the economy back on track torque get our lives back, you would think that should be fairly easy to sell. obviously, this is not. you've run into a lot of