Charité's research reputation rested on nurses, attendants, laboratory assistants, technicians, administrators, cleaners, and patients as well as professors. Their work maintained wards, prepared specimens, recorded observations, and made repeated clinical routines possible.
Large patient populations supplied material for teaching and research, but admission did not guarantee equal power. Patients could receive specialist care while also becoming cases, teaching examples, or research subjects within a hierarchy they did not control.
Reading the hospital through everyday labour therefore changes the meaning of innovation. Pathology and bacteriology were not simply ideas produced by exceptional investigators; they were institutional practices sustained by buildings, budgets, records, bodies, and unequal relationships.