There are growing reports that young people in South Africa are stealing an AIDS medication, called Efavirenz, and using it as a recreational drug. The World's Laura Lynch reports from Johannesburg.

Zimbabwe is in freefall. The country is in the throes of political troubles, an economy in shambles, and a cholera epidemic that's spreading outside Zimbabwe's borders. Anchor Marco Werman gets the story from Jeff Barbee, a journalist with Global Post in Johannesburg, South Africa.

Cholera has killed hundreds of Zimbabweans...and infected thousands. Anchor Lisa Mullins finds out more about the disease from Rita Colwell, a cholera expert at the University of Maryland, College Park.

President Bush marked World AIDS Day with a speech at the White House. Mr. Bush gave an update on his administration's anti-AIDS initiative known as PEPFAR. Anchor Lisa Mullins gets an update on PEPFAR from HIV policy expert and epidemiologist Elizabeth Pisani.

The U.S. President's Emergency Plan for AIDS Relief -- or PEPFAR -- has supported life-saving treatment for more than 2.1 million men, women and children living with HIV/AIDS around the world. But despite the success so far, delivering the drugs remains a Herculean task in the developing world. The World's David Baron has the story of what it takes to get AIDS medicine to just one patient in West Africa.

Doctors in Spain said today they've accomplished something unprecedented. They removed the windpipe of a woman with respiratory disease and replaced it with a new airway created, in part, in the laboratory. The World's Gerry Hadden has the story.

In Zimbabwe, the water taps are dry. The country's water system is old and broken. Many Zimbabweans are forced to dig their own wells and use water that's not clean. That's exposing people to disease. We have this report from Harare.

With nearly 40 million diabetics and growing, China faces a raging health epidemic. Anchor Marco Werman finds out more from Dr. Paul Zimmet, founder of the International Diabetes Federation.

Asians living here and Asia have much higher rates of diabetes than Caucasians, largely due to modern eating habits. Researchers here are figuring out the best ways to prevent an epidemic. The World's Julia Kumari Drapkin reports.

Anchor Lisa Mullins speaks with Dr. John Brownstein, co-founder of HealthMap - a projected funded by Google - about how automated systems are scouring the web to gather data that could give advance warning of a health crisis.