and i'm susan buck binder. i'm speaking on behalf of the entire aids office. we are fortunate to be a world class research organization housed within the health department which is pretty much unique globally. we have three amazing sections that we work with. the first is the surveillance epidemiology section. they really started at the very beginning of the hiv epidemic in tracking what was then known as grid and other term and became aids and then also tracking new cases of hiv infection. and, so, there's really been leaders around the world in how to track trends in new infections and that is what helps us drive both our prevention and our treatment program. they share their data around the world. they are leaders in helping other organizations around the world set up their own surveillance group. this was led by dr. susan sheer and dr. willie mcfar land and i want to acknowledge them and their entire team. (applause) >> the hiv prevention section formerly led it now it's led by tracy packer who is here in the crowd. (applause) >> and stacey leads an amazin