Cases of drug-resistant tuberculosis are increasing around the globe, and at a faster rate than previously thought. And if that weren't enough, TB is quickly building resistance to more and more of the drugs commonly used to fight it.
The troubling picture emerged in a study just published in The Lancet.
The province of KwaZulu-Natal has emerged as the epicenter of South Africa's HIV epidemic. South Africa already has more people infected with HIV than any other country in the world, but parts of KwaZulu-Natal have HIV rates that are more than twice the national average.
Now in addition to HIV and AIDS, the province is also dealing with a major tuberculosis epidemic.
In the northeastern part of KwaZulu-Natal, dusty dirt tracks wind through pastures and fields of sugar cane. The hillsides are dotted with small huts made of cinder blocks and field stones.