Against severe illness. that cushion may be eroded because of some of the mutations they're seeing with omicron, but what that might mean clinically for patients may not be as big a deal, meaning that in the laboratory it me a seem like a big deal, but in the real world it may not feel that much different. i think it makes the case right now, kate, that people who have been thinking about vaccines but haven't yet gotten one, they should reconsider. these vaccines, they do like they will at least offer some protection against omicron. if you're all due for a booster at this point, six months ou...