suerie moon, how do you a nswer risk. suerie moon, how do you answer those two questions?mong the vulnerable, or should you target the super spreaders first, the people? it is a great question. i think one thing we have to understand is of course, what are the characteristics of the vaccines? the ones that are currently at the front of the pack what we know from the way that those trials were designed is that we actually understand very, very little we have very little evidence, if any, as to whether they block transmission. so until we do have that data, i think it doesn't make sense, indeed, to vaccinate those who are most socially active. such as younger people. but if i may, i would like to come back to that earlier question, we know that in the us, for example, we have similar trends, in the us, for example, we have similartrends, and in the us, for example, we have similar trends, and had disproportionately bearing the burden of this pandemic, the government has actually said we should take into account not race but many of the things correlated with race, occupation