Stream: Disease Eradication
A hundred years ago, hookworm disease was an epidemic across the US South. Northern philanthropy tried to help.
Century-old tips to prevent infection still make sense today.
How battling hookworm on rural farms laid the groundwork for a global public health system.
The yellow fever vaccine developed in the 1930s has been used worldwide ever since. Creating it took years and cost several lives. Some thought it would never happen.