Western Anthelmintics in Early Twentieth-Century China Colonial Practices and Knowledge on “Tropical Diseases” of the In/between**

Protestant (medical) missionaries were the main proponents of Western medicine in China after the Opium Wars. Several studies have highlighted how they used spectacular surgery as a means of gaining public trust. As well as surgery, they also administered anthelmintic drugs such as santonin as a tool of persuasion and conversion. Many anthelmintic drugs of the European materia medica had a colonial history. My paper analyses how coloniality materialised in medical practice and anthelmintics in China. For the late nineteenth century, I will examine the colonial practices in which the drug santonin was involved. At the time, santonin was the drug of choice for treating roundworm. In the early twentieth century, medical missionaries became involved in parasitological research on parasitic worms such as hookworm and Fasciolopsis buski. For this period, I will explore how new knowledge about anthelmintics emerged in the scattered knowledge space of China, and how it related to colonialism and imperialism.