Pierre-Emmanuel Ceccaldi is Professor at the University of Paris and Group Head in the Epidemiology and Physiopathology of Oncogenic Viruses Unit, Institut Pasteur. He is the co-director of the Fundamental Virology course at the Institut Pasteur. His main research work focuses on the study of the interactions of different viruses with host barriers (blood-brain barrier, intestinal barrier, etc.) as well as with the neuromuscular system.