but we're not there yet. even though this is an important conceptual advance we are certainly at least several years away from realizing this as a practical vaccine that we could use. jenna: so let's just talk thee theoretically about this. once of the questions we had in our editorial meeting today was whether or not this vaccine would actually make the flu smarter, create a super-flu, if you will that would be able to beat this vaccine and make us a whole lot sicker. >> no, that's really not the concern. you're only concerned about viruses mutating away from, for example, different kinds of therapies, that if you use them inadequately orin appropriately. when you get a vaccine that is against the part of the virus that doesn't change. these proteins, these components, they are called the nuclear protein and the matrix are intregral to the ability for