The Deadliest Infectious Disease of All Time | Crash Course Lecture Tuberculosis is often thought of as an old-timey disease, but in reality, it continues to kill over a million and a half people per year, despite its known cure. How did we get here, to a world where decades of work toward a cure stalled in its dissemination around the globe? And how can understanding the history of TB point us toward a different future? If you’ve been following author and TB-hater John Green in any way for the last year or so, this video is the deep dive you’ve been waiting for…