MSNBC Katy Tur Reports May 4, 2021 18:07:00
Open up retesting, and there are good organizations that are doing work in this phase, but the question is if we are going to get to this place where people are more and more hesitant about vaccines, what will be our strategy to deal with that? >> i got a question for you, though. how do you decide that 12 is the cutoff? what is the difference between a 12-year-old and 9-year-old? how do you decide the age ranges for the trials and also for the approvals? >> yes, so pediatric drug trials follows a series of steps. as you are lowering the age, they typically group people together in bands, and ...