http://www.sciencemag.org/news/2019/10/powerful-tuberculosis-drug-gets-deep-price-cut

A price cut of a powerful drug that prevents  tuberculosis could help thwart disease in some of the 10 million people, such as this man in Dhaka, who become ill with the disease each year.

A 66% price slash of a little used but powerful drug that prevents tuberculosis (TB) could help stave off the deadly lung disease in millions of people around the world.