Team Members

Associate Professor 
Department of Microbiology, Immunology and Infectious Diseases 
Cumming School of Medicine, University of Calgary

Associate Professor Katharina obtained her PhD in Immunology from the Technical University of Munich for her work on regulatory T cells in 2009. She then moved to Stanford, California, for a postdoc in the field of Mucosal Immunology. Since 2014, Dr. Lahl held joint Faculty positions at the Danish Technical University in Denmark and Lund University. She joined the Department for Microbiology, Immunology and Infectious Diseases at the University of Calgary in May 2023. Her team primarily uses Rotavirus infection to study neonatal adaptive immune induction and long-term consequences of neonatal immune induction on overall health with a focus on the role of dendritic cell subsets.

Lab Manager / Research Associate

Postdoctoral Fellow

More information to come

PhD Student

Signe initially joined the Lahl lab in 2021 to complete her master’s degree in biotechnology at the Technical University of Denmark (DTU). The project focused on the connection between Bcl6 and the Notch signaling pathway in dendritic cell (DC) development. Following completion of her degree, she accepted a research job at the University of Melbourne, where she worked on Flt3 regulation in DCs. Returning to the Lahl lab in June 2023, first as a research assistant at DTU, and later as a PhD student at the University of Calgary, her work focuses on the roles of Bcl6 and Blimp1 in DC functionality. Outside the lab, Signe enjoys swing dancing, crafting, and hiking in the mountains.

MSc Student

Guilherme obtained his Bachelor's degree in Biology from the Federal University of Minas Gerais, Brazil. During his undergraduate studies, in the Biochemistry and Immunology Department, he explored the relationship between intestinal microbiota and macrophage polarization during parasite infections. He also spent a semester abroad as an exchange student at the University of Trento, Italy. Guilherme joined the Lahl Lab in the Winter Term of 2025 for his master's degree. His research focuses on how breast milk antibodies shape microbiota communities and interact with the developing immune system. Outside the lab, he enjoys traveling, discovering new places, and practicing amateur photography.

MSc Student

Dasiel Castellanos Pérez obtained his bachelor’s degree in Biochemistry and Molecular Biology from the University of Havana, Cuba, in 2022. During his undergraduate studies, he worked on the development of a monovalent vaccine candidate against dengue virus serotype-2 at the Center for Genetic Engineering and Biotechnology in Havana. Afterwards, Dasiel joined the Center for Research and Advanced Studies in Mexico City to pursue his Master’s degree in Biochemistry. His research focused on calcium signaling mechanisms in HeLa cells. Dasiel joined the Lahl Lab in the Winter Term of 2026 for his second master’s degree. His current research focuses on how maternal antibodies actively influence the development of the adaptive immune response in neonates. Outside the lab, Dasiel enjoys spending time with his family and friends, traveling and discovering new places, going to the cinema, and cooking.

Honours Thesis Student

Julia is an undergraduate student studying biomedical sciences. Her summer work encompasses how breast milk antibodies can influence the development of the neonatal immune system. Outside the lab, she enjoys tending to her garden, learning new languages, and exploring Calgary and its amazing surroundings.

Honours Thesis Student

Summer Student