A mobile clinic set up to test students for HIV is parked near Madwaleni High School in Mtubatuba, KwaZulu-Natal, South Africa on March 8, 2011. Parts of the South African province have HIV rates that are more than twice the national average. Stephane de Sakutin/AFP/Getty Images hide caption

toggle caption Stephane de Sakutin/AFP/Getty Images

Amid An AIDS Epidemic, South Africa Battles Another Foe: Tuberculosis

  • Download
  • <iframe src="https://www.npr.org/player/embed/157434988/157442166" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Opana is the latest painkiller that's become popular with drug abusers. Thomas Walker/Flickr hide caption

toggle caption Thomas Walker/Flickr

As Pain Pills Change, Abusers Move To New Drugs

  • Download
  • <iframe src="https://www.npr.org/player/embed/157359488/157384274" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Health care workers in South Africa speak to residents during a door-to-door AIDS awareness campaign, part of a series of prevention efforts that has helped lower the country's HIV infection rate. Mujahid Safodien /Reuters /Landov hide caption

toggle caption Mujahid Safodien /Reuters /Landov

Prevention Programs Curb New HIV Infections In South Africa

  • Download
  • <iframe src="https://www.npr.org/player/embed/157297530/157342119" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

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

toggle caption Richard Knox/NPR

San Francisco Thwarts HIV With Wide Testing, Universal Treatment

  • Download
  • <iframe src="https://www.npr.org/player/embed/157224605/157244354" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Data from the Twins Early Development Study shows areas in the U.K. where the effect of environmental factors, shown in pink, trumps the influence of genes, shown in blue, and vice versa. TEDS hide caption

toggle caption TEDS

A woman pours two tablets into her hand from a pill bottle. iStockphoto.com hide caption

toggle caption iStockphoto.com

Panel Questions Benefits Of Vitamin D Supplements

  • Download
  • <iframe src="https://www.npr.org/player/embed/154840966/154873771" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A Pakistani man wheels Jamshid, an 8-year-old girl with polio, around the outskirts of the capital Islamabad last July. Behrouz Mehri/AFP/Getty Images hide caption

toggle caption Behrouz Mehri/AFP/Getty Images

Gilead Sciences' Truvada is a step closer to being approved as a way to prevent HIV infection. Paul Sakuma/AP hide caption

toggle caption Paul Sakuma/AP

Nurse Susan Peel gives a whooping cough vaccination to a high school student in Sacramento, Calif. The whooping cough vaccine given to babies and toddlers loses much of its effectiveness by the time people reach their teens and early adulthood. Rich Pedroncelli/AP hide caption

toggle caption Rich Pedroncelli/AP

Feds Join Fight Against Whooping Cough In Washington

  • Download
  • <iframe src="https://www.npr.org/player/embed/152354425/152396913" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An electron micrograph of human norovirus. Charles D. Humphrey/CDC Public Health Image Library ID 10708 hide caption

toggle caption Charles D. Humphrey/CDC Public Health Image Library ID 10708