Tens of thousands of people around the world die each day from causes that could have been prevented with access to affordable health care resources. In an era of unprecedented global inequity, Cuba, a small, low-income country, is making a difference by providing affordable health care to millions of marginalized people.

Cuba has developed a world-class health care system that provides universal access to its own citizens while committing to one of the most extensive international health outreach campaigns in the world. The country has trained thousands of foreign medical...