Members will know that not all vaccines are the same. There are different platforms. There's messenger RNA. There's viral vector. There are proteins.
The advice we got, much as was the case with these international purchases, was that to have domestic security of supply, we really need to be looking at investments across a portfolio of different kinds of manufacturing technology. In the investments that have been made—I can speak to this later if there's interest—we have been trying to cover those various kinds of technologies and platforms so that we're not dependent on just one thing.
I'll stop there.