vaccine booster could become an annual shot much like the flu shot even though i know they're different? >> it could become annual. it could become something that's biannual, actually. a lot of vaccines work in that way. when you get the initial dose, it's sort of primes your immune system, almost as if you're painting a wall. you put the primer down so the color sticks and it pops a little more. for those who are immunocompromised, while the rest of us may be starting at ground zero, they're starting at a negative ten because they don't have a functioning immune system to begin with, which is why it takes more doses in order for them to develop an adequate immune response. >> pfizer is considering lowering the dosage of the vaccine for kids 12 to 15 in the future right now as you and i discussed. they're getting the full adult dose. teens 12 to 15 are in the lowest vaccinated group when you break it down by age in terms of everyone eligible. do you think this inconsistent messaging is part of one of the