'follow the thing' is a series of audio stories about medical materials and how they move from production to patient. This series features the stories of researchers who follow mobile medical materials through the supply chain from production to distribution to delivery. Mobile medical materials include donated blood, medications used to terminate pregnancies, patient data - and much more! They are vital mobilities that impact human health, and require extensive societal circulations to enable critical internal, bodily circulations. Production and audio editing by Claire Louise Travers.