i guess the question that i have for you is do you have the same discomfort i do that i could get a booster shot before any child under 12, when kids under 12 can't get it. does it make you as uncomfortable as it makes me? >> no, joy, it doesn't because we have to finish the clinical trials to show that in children that young, it's safe and induces the kind of response that you would predict would be protective. we already know from clinical trials that in adults like yourself that the vaccine, whichever you got, either moderna or pfizer or j&j is safe and effective. i think that's apples and oranges there. one shouldn't pit one against the other. one has to go through the safety study and the other we know how it acts in adults. >> you mentioned j&j because that's the one that was a one-shot deal.