Ruth Coker Burks with her friend Paul Wineland. Wineland's partner was one of many AIDS patients Coker Burks has cared for over the past three decades. StoryCorps hide caption

itoggle caption StoryCorps

Several countries, including Australia, Japan and Great Britain, already encourage blood donations from some gay men. Kevin Curtis/Getty Images/Science Photo Library hide caption

itoggle caption Kevin Curtis/Getty Images/Science Photo Library

South Africa Health Minister Aaron Motsoaledi has no patience for people who abuse their health and expect the government to fix things. Alexander Joe/AFP/Getty Images hide caption

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Do you know what the deadliest disease is? Hint: It's not Ebola (viral particles seen here in a digitally colorized microscopic image, at top right, along with similar depictions of other contagious diseases) NPR Composite/CDC hide caption

itoggle caption NPR Composite/CDC

Peter Piot was one of the co-discoverers of the Ebola virus in 1976. "I never thought we would see such a devastating and vast epidemic," he says. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images

Over a decade ago, rumors spread in South Africa that sex with a virgin could cure HIV/AIDS. In 2001, 150 people gathered in Cape Town to protest the rape of children and even babies, allegedly as a result of belief in this canard. Anna Zieminski/AFP/Getty Images hide caption

itoggle caption Anna Zieminski/AFP/Getty Images

Better than Egyptian cotton: This electrically spun fabric contains anti-HIV drugs and dissolves rapidly when it gets wet. Courtesy of University of Washington hide caption

itoggle caption Courtesy of University of Washington

Truvada, an FDA-approved drug to help prevent HIV infection, is among the AIDS drugs that fill pharmacy shelves at the Whitman-Walker clinic, a Washington, D.C., community health center. Astrid Riecken/MCT/Landov hide caption

itoggle caption Astrid Riecken/MCT/Landov