The Pros and Cons of Vaccinating Humans

This study that we just published is the first attempt to vaccinate humans. And what we've been able to understand is that you have or the animal that seem unites with this vaccine has an immune response to other types of flu that are not present in the vaccine. So there is proof, at least in our hands, that this part of the virus in a vaccine is able to generate the kind of immune response that we would like in a vaccine.