We have a new virus that is meeting a lot of naive systems. Have never seen this rise before, and that's why we're seeing so many debts and so many people w need to be hospitalized. In future, when it's endemichen we've all had some immunity to the s because we've been vaccinated, or maybe because you've been infected yo'vebeen recovered, it will probably look more like the flue than it is right now. What would it take to get there to the point where this ends up just being the cold or the flue?