How has Cuba, a small, developing country, achieved its stunning medical breakthroughs? Hampered by scarce resources and a long-standing U.S. embargo, Cuba nevertheless has managed to provide universal access to health care, comprehensive health education, and advanced technology, even amid desperate economic conditions. Moreover, Cuba has sent disaster relief, donations of medical supplies and technology, and cadres of volunteer doctors throughout the world, emerging, in Castro's phrase, as a "world medical power."

In her significant and timely study, Julie Feinsilver explores the Cuban...