An HIV-positive mother in Thailand plays with her son, who did not contract the virus in utero. Thailand has eliminated mother-to-child transmission of HIV, according to the World Health Organization.
A gay man with HIV stands in a clinic in Dar es Salaam, Tanzania. He's been afraid to pick up his medicine because of the government's crackdown on the gay community.
Kevin Sief/The Washington Post/Getty Images
From left: Emmanuel Kwame lost his sight to river blindness as a young man in Ghana; a bed net keeps mosquitoes away from a mother and child in a Somalian hospital; extracting a guinea worm from an infected person.
Getty Images and NPR
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