Curing Leprosy with DDS: Metamorphosis of Colonial Medicine into Global Health

This article addresses the question of how the belief that leprosy is curable became an accepted scientific statement during the processes of colonization and postwar nation-building. Following the use of chaulmoogra oil to the introduction of diaminodiphenyl sulfone (DDS) as a cure for leprosy, the article shows how medical workers in Hong Kong and Taiwan, two contact zones in the global leprosy network, helped transform leprosy medicine into a practices centered on the mass administration of DDS. Focusing on the idea of a cure and looking for all the transformations this idea went through afterward, this article argues that it was chaulmoogra oil that created the research and management infrastructure for DDS. DDS did work, but it worked because chaulmoogra oil had already produced the conditions for a cure. This article contributes to recent calls to “provincialize STS” and to investigate postcolonial technoscience by examining the situated production of the global leprosy infrastructure. It shows that by serving as laboratories and extending the network in which the belief of a cure was embedded, the colonies were key to each stage forming the cure for leprosy as an accepted scientific statement.