Just as a closing comment, I would just reference, we have entered in some of these markets into a very interesting phase of the pandemic, which is that we are in the lower risk population and we are providing vaccination to them as appropriate. So, as we do that, we're looking at benefit/risk in increasingly cautious ways, and that's appropriate. But as we look forward to next year and we start thinking about boosting, and particularly, the seasonal market of protecting those that are highest risk, I think that calculus obviously changes pretty dramatically. And so, I think we are in a period of time where we are, again, looking at the lowest risk populations. And I think that is transient period time ultimately because it is high risk populations that are of greatest concern looking forward from 2022.
Stéphane Bancel: Maybe just to add just a bit of color. I've had a chance to speak with a couple of health ministers across the world in the last week or two. And I think people are very clear that the risk is low, that it's very manageable, as Paul said, and it's only in the male 18 to 24. And those health ministers were clear about going back to the risk profile that Stephen just mentioned. They care about having a winter where they don't have hospitals exploding again. And this is driven by the 50 and above, the 40 and above where they know the vaccine, as Paul mentioned, with the data from the US or Switzerland or many other countries that 1273 vaccine seems to be a vaccine providing the longest protection of efficacy, and that's what they care about. And so, I think that people are getting educated and looking at the data. They're just trying to look at the facts and figure out, in a very practical way, how do they keep the economies running, how they keep people out of hospitals and are very focused on the high population. As you know, in many countries, the boosters are not approved in the younger population, whereas they are being really advertised and promoted in the older population, so that people get boosted and don't get sick and hospitalized this winter. On the US government, Gena, we don't comment on volume. US government is a private contract to the government. But indeed, there are some shift from Q4 to next year, both Q1 and Q2.