We are a research group at the Biozentrum, University of Basel, Switzerland. We are broadly interested in evolution, ecology, and population genetics with a focus on rapidly evolving pathogens such as HIV, influenza virus, or pathogenic bacteria. These organisms have large population sizes, short generation times and are subject to strong selective pressure for example by immune responses or drug treatment. Understanding their evolutionary dynamics and adaptability is important to limit the spread of these pathogens. On the other hand, dense surveillance and the rapid evolution of many pathogens allow us to study fundamental questions in evolutionary biology and ecology.