Well, one of the things is that we are using an adjuvant that gives us four doses for one and gives us excellent immunity, including for those who normally do not mount good immunity. This is the next generation of vaccines in terms of influenza.
So in terms of what we can do moving forward to see if there's anything that would be different, we'll obviously be revisiting all of this to see what we can do, as every jurisdiction will be, and as every local health authority will also be examining, and as they already have, because we've seen how they've changed their programs in response to what they saw in the first two weeks of the campaign.