all the hiv isolates that we have been able to identify in the laboratories. so this person stood out as really quite unique. and because of that, the scientists will be able to do the manipulations that are now leading them directly precisely to what they need to make from the hiv virus to use as a vaccine. >> and we talk about using the vaccine and these antibodies. but are we talking about something that can lead to people living longer with hiv or are we talking about an actual vaccine that can prevent it in the first place? >> we're talking about an actual vaccine that can prevent it in the first place. this it person was infected with hiv and was making the response. what now the next step is, is to take that part of the covering of the virus that we now know, when you make an antibody to it, you make very potent antibodies and use that as a vaccine to vaccinate people who are not infected to prevent them from getting infected.