Nothing could prepare me for the tuberculosis ward I visited in Durban, South Africa in 2009. Every bed was filled and the waiting list for admission was more than 80 names long. Soon, however, TB hospitals in South Africa may look more like this. Recent scientific breakthroughs mean that many of the wards that used to be full of patients may one day be filled with empty beds instead. That’s a testament to the incredible efforts of people like Dr. Andreas Diacon.