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(EN) « Right from the start of my scientific career, I have been fascinated by how bacteria evolve and adapt to their constantly changing environment. During my PhD at the University of Namur in Belgium, I showed that the intrinsic dimorphism of Caulobacter crescentus provides a prompt response to stressful environments, similar to the fight-or-flight response observed in animals. Following my PhD, I gained broad experience in the bacterial adaptation field, by studying host-pathogen interactions using the human pathogen Capnocytophaga canimorsus. I then moved to the University of Oxford in the UK to characterise a novel toxin-antitoxin system in enteropathogenic Escherichia coli, as these systems are known to play a major role in responding to the environment.”