Eva Frickel, a Wellcome Trust Senior Fellow and currently head of the Host-Toxoplasma Interaction Laboratory at the Francis Crick Institute, studies mechanisms of human interferon-induced innate defence against Toxoplasma gondii and Salmonella typhimurium. Recently, her lab discovered a ubiquitin-mediated anti-Toxoplasma acidification pathway and defined apoptosis as a host cell death pathway regulated by Guanylate Binding Proteins during infection. Eva has a background in chemistry and biochemistry and she completed her PhD with Ari Helenius at the ETH Zurich, Switzerland, studying glycoprotein folding in the endoplasmic reticulum. Eva became interested in pathogen protein degradation during her postdoctoral training with Hidde Ploegh at MIT, USA. She used chemical biology and in vivo cloning techniques to decipher immune surveillance of the parasite Toxoplasma gondii. Throughout her career, Eva has incorporated latest technologies in her research, most recently an artificial intelligence-driven pipeline for host-pathogen image analysis.