Cuban medical internationalism
After the 1959 Cuban Revolution, Cuba established a program to send its medical personnel overseas, particularly to Latin America, Africa, and Oceania, and to bring medical students and patients to Cuba for training and treatment respectively. In 2007, Cuba had 42,000 workers in international collaborations in 103 countries, of whom more than 30,000 were health personnel, including at least 19,000 physicians.
Source: Wikipedia — Cuban medical internationalism (CC BY-SA 4.0)