Caroline Zellmer


PhD Candidate, University of Cambridge
BS, University of Wisconsin–Madison

Caroline Zellmer is a microbiologist and PhD candidate at the University of Cambridge, where she is developing and optimizing novel antimicrobials in collaboration with industry and academic partners around the world. As a part of this work, she recently was a Visiting Scientist at GSK.

Caroline previously led OpenBiome’s global health program, developing microbial therapeutics for malnutrition and diarrheal disease. At OpenBiome she worked closely with nonprofit, industry, and academic partners to launch the first clinical trial of a microbial therapeutic in a LMIC. During this time, Caroline also served as a Research Affiliate and Visiting Lecturer at MIT. Caroline started her career investigating emerging infectious diseases at the US NIH.

Caroline received her bachelor’s degree with honors in research at the University of Wisconsin–Madison, where she studied Microbiology, History of Science, and Global Health. She later completed graduate training at the Institut Pasteur, Paris.

In a volunteer capacity, Caroline serves on advisory boards for the Global Alliance for Genomics and Health, and the Microbiology Society. Her work has been published in the New England Journal of Medicine and cited in the IDSA clinical treatment guidelines for C. difficile.

Caroline has lived and worked in six countries on three continents, but has retained a strong love of her hometown, Madison, WI. She has fond memories of the lakeshore path, Babcock hall ice cream, and the Wisconsin Union.