I'm Esthel Pénard, and I've been working in the Ultrastructural Bio Imaging platform at Pasteur Institute for 8 years. I work on conventional microscopy projects, specializing in 3D electron microscopy and, more specifically, FIB-SEM. This approach is used to study host-pathogen interactions, notably on cells infected by viruses or bacteria, on isolated organisms such as parasites, or on tissue samples.