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Germs can make us sick, but we didn\u2019t know about these puny pathogens prior to the end of the 19th century. Just the suggestion that a tiny bug could spread disease made eyes roll. Then came germ theory, sterilization, and antibiotics. It was a revolution in medicine. Now we\u2019re on the cusp of another one. This time we may cure what ails us by replacing what ails us.\nBioengineers use advancements in stem cell therapy to grow red and white cells for human blood. Meanwhile, a breakthrough in 3D printing: scientists print blood vessels and say that human organs may be next.\nPlus, implanting electronic grids to repair neural pathways. Future prosthetics wired to the brain may allow paralyzed limbs to move.\nWe begin with the story of the scientist who discovered the bacteria that caused tuberculosis, and the famous author who revealed that his cure for TB was a sham.\nGuests:\n\n\nThomas Goetz \u2013 Author of The Remedy: Robert Koch, Arthur Conan Doyle, and the Quest to Cure Tuberculosis\n\n\n\nJose Carmena \u2013 Neuroscientist and biomedical engineer at the University of California, Berkeley; co-director of the Berkeley-UCSF Center for Neural Engineering and Prostheses\n\n\nWilliam Murphy -Bioengineer and co-director of the Stem Cell and Regenerative Medicine Center, University of Wisconsin, Madison\n\n\nAli Khademhosseini \u2013 Bioengineer, Harvard Medical School, Brigham and Woman\u2019s Hospital\n\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices