Hospital practitioners in East Africa see traditional and modern medicine interrupt and interfere with one another on hospital grounds everyday. In response, nurses and nurse's aides have developed innovative ways of assembling diverse therapies and the knowledges, practices, desires, and medicines of which they consist. Through their care and coordination, nurses and nurse's aides forge complex bodies within the therapeutic interruptions and interferences they face in their clinical work. [traditional medicine, biomedicine, body, ontology, Tanzania, Africa]