This is the amazing story of Chinese scientist Tu Youyou, who was given the daunting mission of finding a malaria cure during the Vietnam war. Her discovery of artemisinin as a treatment for malaria has saved millions of lives. And she did it without a medical degree or PHD. 🎧 Hear about another Nobel Prize laureate's medical breakthrough: https://bbc.in/3Yzfmjm | BBC World Service