On the flip side, where is the consensus that the COVID vaccine will only require the initial two doses and then a booster? At this point, it seems everyone is guessing. If we can beat it down now, maybe this is all that will be needed long term. But I don't think we know at this point. And that was sort of the reasoning around my original question. Yes, let's knock out the virus as much as possible now with vaccines. But once this occurs, what are we going to need as far as vaccines? At this point, to expect that we will just need a pattern of shots similar to measles (more or less) seems really premature.