In this photo taken June 27, 2012, Natrussa Williams, an HIV tester and counselor, right, explains how the results of the oral HIV test will show up to Katherine Tapp, 26, of New York City, inside the... more 
In this photo taken June 27, 2012, Natrussa Williams, an HIV tester and counselor, right, explains how the results of the oral HIV test will show up to Katherine Tapp, 26, of New York City, inside the HIV Testing Room at the Penn Branch of the District of Columbia Department of Motor Vehicles, in southeast Washington. An AIDS-free generation: It seems an audacious goal, considering how the HIV epidemic still is raging around the world. Yet more than 20,000 international HIV researchers and activists will gather in the nation's capital later this month with a sense of optimism not seen in many years _ hope that it finally may be possible to stem the spread of the AIDS virus. (AP Photo/Jacquelyn Martin) less 
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Associated Press | Photo By Jacquelyn Martin
Sat, Jul 7, 2012 9:39 AM EDT