Medical student with rare disease finds possible cure from studying his own blood samples

Dr. David Fajgenbaum was a third-year medical student when he suddenly fell ill and was diagnosed with Castleman disease. Determined not to give up on life, the doctor relapsed four times before he took it upon himself to find a cure for his disease. Fajgenbaum sits down with Fox News’ Dr. Manny Alvarez to talk about his miraculous journey of survival.