In next week’s Perspectives on Science Seminar, Abigail Nieves Delgado (Utrecht University) will give a talk titled “Beyond Race: Rethinking Population Descriptors in Microbiome Research”.
The seminar takes place in Metsätalo (room 10), and online via Zoom from 14:15 to 15:45 on Monday the 27th of October 2025.
Perspectives on Science is a research seminar which brings together experts from the philosophy of science and several fields of science studies. It is organized by TINT – Centre for Philosophy of Social Science at the University of Helsinki. More information about the seminar can be found on the TINT webpage https://tint.helsinki.fi.
What: “Beyond Race: Rethinking Population Descriptors in Microbiome Research” by Abigail Nieves Delgado
When: Monday 27.10.2025 from 2 to 4 pm (EEST, Helsinki time).
Where: Metsätalo (room 10), and Zoom.
Zoom link: Contact mirja-leena.zgurskaya@helsinki.fi for the Zoom link.
Abstract:
Population descriptors like race, ethnicity, nation, or genetic ancestry are commonly used in biomedicine. They aim to convey relevant information about populations and their relation to one another. In this context, several authors have discussed the problems of using race and ethnicity interchangeably (Panofsky and Bliss 2017), using race as proxy (Gravlee 2009; Lin and Kesley 2000), and assuming that genetic ancestry is a neutral descriptor (Gannett 2014; Haddad 2025). In the field of human microbiome research (investigating differences in the microbiome depending on genetic and/or cultural contexts) these population descriptors are yet more problematic and imprecise. Given that microbiome composition changes depending on many organismal and environmental factors, the epistemic role of racial differences, ethnic characteristics, nation specific traits, or genetic ancestry percentages in distinguishing microbial patterns remains to be clarified. In this presentation we argue that population descriptors suffer especially from two problems: They introduce explanations with low proportionality that fail to grasp relevant causal relations; and their usage is motivated by an overly strong focus on global instead of local health issues. Both problems together amount to what we call the ‘missing locality challenge’ of descriptors. Not addressing it leads to epistemic biases and stereotypes against local communities. By drawing on a case study on human microbiome research, we introduce a new framework to meet this challenge. It ranks population descriptors from ‘global’ to ‘local’ contexts of application, which helps selecting appropriate descriptors for different kinds of disease causalities and groups without stereotyping them.
Bio:
Abigail Nieves Delgado is associate professor at the Freudenthal Institute, Utrecht University. She works on the history and philosophy of the life sciences, especially on racialization practices in the history of science as well as in contemporary biomedical research (e.g., in microbiome research and epigenetics) and in biometric technologies (e.g., facial recognition). She also investigates the politics of transdisciplinary knowledge production and the history of ethnobiology in Latin America. She is the principal investigator of the project “Microbiome research and race in the ‘Local South’” funded by the NWO. This project aims to develop epistemically fruitful, non-discriminatory, and locally relevant classification criteria of human diversity to be used in human microbiome research instead of pernicious and ambiguous categories of race.
If you have any questions about the seminar, do not hesitate to contact mirja-leena.zgurskaya@helsinki.fi.