President Obama walks into an auditorium in the Eisenhower Executive Office Building Monday for a speech about World AIDS Day. Carolyn Kaster/AP hide caption

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David Lozano (left) and Kevin Kreinbring stand in front of a painting created by Lozano. The couple says they get tested for HIV together every six months. Courtesy of David Lozano hide caption

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Latinos and African-Americans are more active on social media. Could that help promote HIV testing among minorities? Brendan Smialowski/Getty Images hide caption

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HIV patient Darnell Hollie, 47, talks to her doctor Monica Gandhi (right) at San Francisco General Hospital. Her path from drug addict to model patient was "a lot of work, but if you want it, it's there for you," Hollie says. Richard Knox/NPR hide caption

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Young activists distribute condoms at an AIDS awareness event in Ashbury Park, N.J. Charles Sykes/AP hide caption

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The Food and Drug Administration just approved the OraQuick test, which detects the presence of HIV in saliva collected using a mouth swab. Chuck Zovko/AP hide caption

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