immunity post infection lasts as compared to immunity post vaccination. >> right. that's a very good question. and, of course, we haven't had the time to study this longitudinally since we just did the study. one aspect is that the immune -- though antibodies wane over time, people develop a memory response, right, so six months or a year down the road, if we fast-forward and get reexposed, you get a much better immune response because of the memory phenomenon. >> okay. now, to be clear, this study was prior to the omicron variant. do you expect similar results with omicron or do we just not know? >> well, we don't know directly. we haven't studied the omicron variant directly. we're work on that now. what we did see was that when you take the folks with the augmented immunity, compared