The vaginal ring is made of silicone, it's flexible and it continuously releases the anti-HIV drug dapivirine. Stephane De Sakutin/AFP/Getty Images hide caption
Sudanese dockers unload a U.S. aid shipment at Port Sudan on the Red Sea coast on May 5. Ashraf Shazly/AFP/Getty Images hide caption
Michael Weinstein is president of the AIDS Healthcare Foundation and a longtime maverick in gay activist circles. April Dembosky/KQED hide caption
From Maverick AIDS Activist To Porn Cop: The Man Behind Proposition 60
Every day, hundreds of patients wait to be seen at the Munhava health center in Mozambique's port city of Beira. Morgana Wingard hide caption
Catherine Msimango, 18, takes a nightly pill to protect her against HIV. "It's all about my safety," says the South African high schooler. Jason Beaubien/NPR hide caption
The alleyway known as the Beira "corridor" is part of the city's informal prostitution zone, where sex workers wait to meet clients. Gianluigi Guercia/AFP/Getty Images hide caption
Fighting HIV In Two High-Risk Groups: Sex Workers And Truck Drivers
Cleopas Kapembwa Chisanga of Zambia, who is HIV positive, is the subject of a new video and will be broadcasting from this week's International AIDS Conference in Durban, South Africa. Sydelle Willow Smith/International Aids Society hide caption
A billboard asks Ugandans to abstain from sex until marriage. The photo was taken in 2005 in Kampala. Per-Anders Pettersson/Getty Images hide caption
U.S. Spent $1.4 Billion To Stop HIV By Promoting Abstinence. Did It Work?
On her first visit to the U.S., Loyce Maturu of Zimbabwe was impressed by how friendly Americans are. She couldn't get over that they'll say hello to a stranger in an elevator. Ben de la Cruz/NPR hide caption
Rosa Coj Bocel is the first person from her village in Guatemala to go to college. She hopes to become a nurse and open a pharmacy. Akash Ghai/NPR hide caption
A pneumococcal vaccine is delivered via motorcycle in Kenya. Evelyn Hochstein/Courtesy of Gavi hide caption
African-American men who have sex with men face a high risk of becoming infected with HIV. Jose Luis Pelaez Inc/Blend Images/Getty Images hide caption
Gay and bisexual men were banned from donating blood over concern that HIV could contaminate the blood supply. Vesna Andjic/Getty Images hide caption