quote, personal belief. do you see this ever becoming the norm throughout the united states in the same way the measles vaccine did or is this going to be subject to the same kind of red state/blue state politics we've seen? >> well, this is an interesting question because it's always been a state sort of run issue. so they -- the feds have always left it up to the states to mandate these vaccines. figure out who could qualify for exemptions. all of that. and the federal government even now has basically said we're not going to get into the business of creating a national vaccine tracking system or anything like that. so i think it's going to sort of still probably fall on the states. what is interesting is personnel exemption rules have changed even as a result of the measles outbreak a few years ago. states had pretty liberal personal exemption clauses and many of them got rid of those clauses saying we cannot allow -- if there's a medical reason not to get the vaccine,