Dr. Gagnon, could you speak quickly to the extent to which, over the medium term, in the next several years, we're going to continue to need vaccinations?
From a public policy point of view, is this something that really ought to become a cash cow for large pharmaceutical companies, or is this something that we're going to continue to have a public interest in? There's an economic cost of not having that ongoing vaccination effort, and this really isn't the kind of thing that should be for private profit. At the very least we should be able to monitor it to see if those profits are excessive.