All right. That's interesting.
Let's talk a bit about this window period. Pardon my ignorance with respect to blood; I'm not a doctor or anything. On this window period, if you collect blood from somebody and you have no idea whether they have HIV or not, can that blood be stored for those 10 days, or whatever that window period is, to see whether or not that blood mutates, and then have it go through the testing in order to determine whether it has HIV in it?