south african version of the cdc, eventually said, hey, this thing went up like the north face of everest and it's coming down as if you're going down the south face here. is that the outcome we should expect around the world that omicron comes and goes, it's going to spread fast, but it goes quickly? >> could be. that was true in south africa during the delta variant as well. we saw a dramatic increase in cases, hospitalizations, deaths, then decrease. same for delta. dramatic increased cases, hospitalizations, deaths, then decreases. here with omicron, it's somewhat reassuring, a dramatic increase in cases, not concomitantly as high in hospitalizations and deaths for the reasons we talked about. i think you'll see a lot of upper respiratory infections that are mild. i think you'll see increase in cases in winter anyway. it's a winter virus and people are susceptible and we're doing more testing.