Conan O'Brien: Why are we still giving out wo hooster? That makes no sent i don't get that. The boon of the vaciom platform was that it was so quick to change direction, and yet we have not changed direction at all. There's talk right now that we're going to go to an annual cove 19 shot. What should be the level of evidence for that? In my world, i'd love to see you prove to me that shot works in the southern hemisphere when they're having their winter surge.