protective. is that why a pan virus is more possible? we ve had human strains of the coronavirus circulating every year. a pan vaccine would be great. it s highly inspirational. in the 1980s, they were working on an influenza vaccine and that was more than 40 years ago. dr. fauci alluded to that when he said it s not right around the corner, but it would be a value to have something like that. for right now, you should worry when a variant arises where the vaccine does not protect against serious disease, and then we re going to need a variant-specific vaccine. right now that s not apparently in the offing. thank goodness. dr. jha had an interesting take this morning just on this point, about how we should maybe start looking at covid and how we can live with covid. listen to this.