Julie Pourtois is interested in the ecology of phages and how they affect both natural environments and human health. She earned her bachelor degree in Ecology and Evolutionary Biology from Princeton University in 2018 and completed her PhD in Biology from Stanford University in 2024, working with Giulio De Leo and Paul Bollyky to investigate the role of filamentous phages in bacterial infections in people with cystic fibrosis. As a postdoctoral researcher in the Weitz Lab, she aims to use mathematical models to better understand the effect of bacterial metabolism on phage-bacteria dynamics in the ocean.