Secretary of State John Kerry and the American ambassador to the United Nations, Samantha Power, have praised the work of Cuban doctors dispatched to treat Ebola patients in West Africa. The Centers for Disease Control and Prevention recently sent an official to a regional meeting the Cuban government convened in Havana to coordinate efforts to fight the disease. In Africa, Cuban doctors are working in American-built facilities. The epidemic has had the unexpected effect of injecting common sense into an unnecessarily poisonous relationship.