Pandemics & Society Webinar 6th November, “An Invisible Epidemic: Studying Tuberculosis in Interwar Tanganyika”
For the sixth Pandemics & Society Seminar of our Fall 2025 series we are pleased to welcome Christoph Gradmann (University of Oslo). The seminar will be held on Thursday, 6th November at the normal time (1600 CEST). More information about our speaker and the presentation is below. You can sign up for email notifications about the seminar series, including the Zoom details, here.
Blurb: Tuberculosis as a chronic infectious disease seems to sit oddly with common notions of what is to be considered epidemic or endemic. As a result, the conditions presence is often endemic in character, but the term itself is rarely employed. However, the question of an epidemic or endemic character was explicitly addressed was in studies of African tuberculosis between the world wars. Around 1930, researchers were exploring its presence in Africa, and many were favouring Lyle Cummins’ hypothesis that, much like European colonisation, the condition was a recent arrival in Africa. This meant that there had to be a quickly spreading epidemic into a susceptible population. In my paper, I will look at the epidemiological surveying that was done in Northern Tanganyika in exploration of Cummins’ theory. What does it teach us about colonial science? What happened to Cummins’ explanation when available data – as they were – supported it less and less?
Biography: Christoph Gradmann is professor of the history of medicine at the University of Oslo, Department of Community Medicine and Global Health. His research interests range from 19th ct medical bacteriology, through 20th ct drug development, antibiotics resistances to the history of tuberculosis Africa. He has published several monographs, numerous editions, guest editorships and many papers. He is the author of ‘Laboratory Disease: Robert Koch’s Medical Bacteriology, JHUP 2009’, ‘Global Health and the New World Order’ (with Claire Beaudevin, Jean-Paul Gaudillière Anne Lovel and Laurent Pordie), Manchester University Press, 2020 and of ‘Another Magic Mountain: Kibong’oto Hospital and African Tuberculosis, 1920-2000.’ Ohio University Press, 2025.